Answer up front: for a car, SUV, van, truck, HGV, motorhome or caravan driver who wants EE-family voice calls and 1800 MHz 4G boosted on Band 3 plus a universal Band 1 3G fallback for calls and basic data on EE, O2, Vodafone and Three, the CVDW at £259.99 is the only matched chassis: ≥45 dB uplink and ≥50 dB downlink gain, ≥10 dBm per-band output, ≤5 dB noise figure, Automatic Gain Control, up to 15 simultaneous users, the magnetic-mount omni 5 dBi aerial on a 5-metre lead, the interior 3 dBi whip and the 5V DC cigarette-lighter adapter in one drill-free kit installed in under 15 minutes.

The CVCW at the same £259.99 pairs Band 20 at 800 MHz rural 4G data with Band 1 at 2100 MHz for universal 3G, but it never tunes Band 3 at 1800 MHz, so it cannot boost the EE-family voice call path or the EE 1800 MHz 4G layer. The CVCD at the same £259.99 pairs Band 20 rural 4G with Band 3 1800 data, but it never tunes Band 1 at 2100 MHz and carries no dedicated voice band, so a non-VoLTE call and an O2/Vodafone/Three fallback stay native indoors. The CVGW at the same £259.99 pairs Band 8 at 900 MHz general 2G voice with Band 1 3G, but it never tunes Band 3, so it cannot deliver the EE 1800 MHz 4G channel or the Band 3 EE voice path.

This page compares the four Boost4U £259.99 vehicle chassis side by side rather than in a broad roundup: the CVDW, the CVCW, the CVCD and the CVGW. It separates the shared vehicle engineering — gain, output, AGC, mount, user count and price — from the two decisions a driver must make: whether you need the Band 3 EE-family voice and 1800 data layer, and whether your call fallback should be universal Band 1 3G, a second 4G data layer, or a Band 8 legacy 2G channel. A five-branch decision tree at the end follows vehicle type, SIM mix, data needs and legacy-voice reliance so the choice follows your route rather than the loudest marketing label.

All four units are UKCA and CE certified, Ofcom licence-exempt, ship free within the UK on 1 to 2 day handling plus 10 to 15 day transit, and carry a 365-day mail return window. None carries 5G; the CVDW and CVCW and CVGW carry Band 1 3G, while the CVCD carries Band 20 and Band 3 data only. All run from the 5V DC car adapter, with a 240V AC adapter or mobile power bank optional for a parked motorhome or static caravan. The rest of this page numbers every band, £0.00 tie and spec before you order.

Before the tables, three rules keep the comparison honest. First, the four chassis share the vehicle-grade hardware class: ≥45/≥50 dB gain, ≥10 dBm per-band output, ≤5 dB noise figure, AGC, 15 simultaneous users, the magnetic mount and whip kit, and the £259.99 price. The differences are band plans and network service, not build quality or power class.

Second, Band 3 at 1800 MHz (uplink 1710 to 1785 MHz, downlink 1805 to 1880 MHz) carries the EE host network's voice calls, text and 1800 MHz 4G LTE data for direct EE and the BT, Asda, Virgin, Orange, T-Mobile and TPO MVNOs. Band 1 at 2100 MHz (uplink 1930 to 1990 MHz, downlink 2110 to 2180 MHz) carries 3G UMTS data, voice and SMS on EE, O2, Vodafone and Three, the universal fallback. Band 20 at 800 MHz (uplink 832 to 862 MHz, downlink 791 to 821 MHz) is the rural 4G LTE workhorse across the major hosts; Band 8 at 900 MHz carries general O2/Vodafone legacy 2G voice and SMS only. A chassis tuned to one band cannot manufacture another by settings or antenna swaps.

Third, between CVDW and CVCW the shared layer is Band 1 3G, and the deciding question is whether you need the Band 3 EE voice and 1800 data channel; between CVDW and CVCD the shared layer is Band 3 data, and the deciding question is whether you need a dedicated voice band and Band 1 universal 3G; between CVDW and CVGW the shared layer is Band 1 3G, and the deciding question is whether the second band should be Band 3 EE voice and 1800 4G or Band 8 general 2G voice. Between CVCW and CVCD the shared layer is Band 20 rural 4G, and between CVCD and CVGW there is no shared modern voice or data layer at all.

Because the CVDW and CVCW share Band 1, this comparison never turns the two against each other on universal 3G; it turns on whether the route needs boosted EE voice. Because the CVDW and CVCD share Band 3, it never turns them against each other on the 1800 data layer; it turns on which fallback band the SIMs require. Coverage inside the cabin assumes a usable 1 to 2 bar donor outside the vehicle; the booster cleans that donor, it does not create one. The tables below compare specs, the £0.00 tie and day-one versus five-year cost before the decision tree.

Read the band plan row before the price row: CVDW and CVCW share Band 1 universal 3G, CVDW and CVCD share Band 3 1800 data, CVDW and CVGW share Band 1 universal 3G, and only the CVDW carries the Band 3 EE voice channel. Then read the voice rows, where CVGW keeps Band 8 general 2G and the CVCD leaves every call fallback to the native network.

No chassis undercuts another on price, so the £259.99 decision never rewards a bargain; it rewards matching the band plan to the SIM mix. A CVCW buyer who later needs boosted EE voice adds a Band 3 unit on top of the £259.99 already spent; a CVCD buyer who later needs universal 3G adds a Band 1 unit; a CVGW buyer who later needs the EE 1800 layer adds a Band 3 unit; only the correctly matched single chassis closes the job day one without a second purchase.

The CVDW and CVCW share an identical Band 1 plan at 2100 MHz: 3G UMTS data, voice and SMS on EE, O2, Vodafone and Three, together with the same ≥45/≥50 dB gain, ≥10 dBm per-band output, ≤5 dB noise figure, AGC, 15-user rating, vehicle mount and £259.99 price. No universal fallback one covers, the other misses; the £0.00 gap exists entirely to choose the second band.

CVCW: Band 20+1, rural 4G data plus universal 3G, no Band 3 EE voice channel

The CVCW pairs Band 20 at 800 MHz for all-network rural 4G LTE data with Band 1 at 2100 MHz for universal 3G fallback. Its 800 MHz layer reaches well through bodywork and caravan insulation for maps, streaming, app data and hotspots on the major hosts, and its Band 1 layer keeps a 3G fallback on all four hosts. What it does not tune is Band 3 at 1800 MHz, the channel that carries the EE-family voice call path and the EE 1800 MHz 4G layer. On an EE, BT, Asda or Virgin handset the CVCW leaves the voice call native indoors; the driver rides Band 1 3G for fallback rather than a boosted Band 3 call.

CVDW: Band 3+1, EE voice and 1800 4G plus universal 3G, no Band 20 rural 4G channel

The CVDW pairs Band 3 at 1800 MHz for EE-family voice, text and 1800 4G data with Band 1 at 2100 MHz for universal 3G fallback. It never tunes Band 20 at 800 MHz, so an O2, Vodafone or Three member receives Band 1 3G rather than a boosted rural 4G data channel on this chassis; modern VoLTE phones keep EE calls over 1800 4G, and older devices or non-VoLTE MVNOs fall to Band 1 3G rather than losing the call. The Band 3 layer is what keeps an EE business call, a BT Mobile depot call and a Virgin family call clear through bodywork and village shielding where a data-only chassis runs out of voice gain.

The £0 tie decides by SIM host, not by 3G strength

Because Band 1 and the hardware class match, the CVCW-versus-CVDW choice is a pure host-network question: choose the CVCW when the vehicle route depends on rural Band 20 4G data for O2, Vodafone or Three SIMs and no EE-family boosted call is required; choose the CVDW when an EE, BT, Asda or Virgin handset needs the boosted Band 3 voice path alongside a universal 3G fallback. A CVCW bought for an EE-business dispatch call underperforms from day one, because the missing Band 3 cannot be added by an antenna upgrade.

The CVDW and CVCD share an identical Band 3 plan at 1800 MHz: the EE 1800 MHz 4G data layer, plus the same ≥45/≥50 dB gain, ≥10 dBm output, AGC, 15-user rating, mount and £259.99 price. The deciding question is which second band the vehicle needs once 4G alone weakens.

CVCD: Band 20+3, dual 4G data, no dedicated voice band and no Band 1 3G

The CVCD pairs Band 20 at 800 MHz rural 4G data with Band 3 at 1800 MHz for the EE data layer, carrying neither Band 1 3G nor a dedicated voice channel. It works well for a delivery van or office car where both 4G data layers matter and native calling already holds on modern VoLTE handsets. On an older non-VoLTE handset, an O2/Vodafone/Three member or a mixed-SIM fleet, the CVCD provides data only with no boosted call fallback; it never amplifies Band 1 3G on any host.

CVDW: Band 3+1, EE voice and 1800 data plus Band 1 universal 3G, no Band 20 rural 4G layer

The CVDW pairs Band 3 voice and 1800 data with Band 1 3G across EE, O2, Vodafone and Three. Wherever 4G drops in a village or valley, the 3G layer keeps voice and basic data alive on every host rather than leaving the call native. It carries no Band 20 800 MHz channel, so the trade is a universal modern fallback against a second rural 4G data layer. For a mixed-SIM fleet, an EE business driver or a non-VoLTE MVNO, the Band 1 layer covers what the CVCD leaves native.

The £0 tie decides by call fallback, not by 4G strength

Because Band 3 and the hardware class match, the CVDW-versus-CVCD choice is a pure fallback question: mixed-network car, van, taxi or motorhome needing calls on EE, O2, Vodafone and Three through a 3G layer = CVDW; data-only delivery van or office car where both 4G layers matter and VoLTE calling already holds = CVCD. A CVCD installed in an EE-heavy fleet with older handsets boosts data but leaves those drivers' call fallback native; adding Band 1 later means a second chassis rather than a setting change.

The CVDW and CVGW share an identical Band 1 plan at 2100 MHz for universal 3G, with the same gain, output, AGC, 15-user rating, mount and £259.99 price. The deciding question is which legacy or modern voice band the second slot should carry.

CVGW: Band 8+1, general 2G voice plus universal 3G, no Band 3 1800 4G

The CVGW pairs Band 8 at 900 MHz for general O2/Vodafone 2G voice and SMS with Band 1 at 2100 MHz for universal 3G. Its 900 MHz layer reaches well through bodywork and caravan insulation for an older legacy handset, and its Band 1 layer keeps a 3G fallback on all four hosts. What it does not tune is Band 3 at 1800 MHz, so it cannot deliver the EE 1800 MHz 4G channel or the Band 3 EE voice path. A modern EE handset browsing, navigating or streaming receives no boosted 1800 data on this chassis; the driver rides native 4G outside the boosted vehicle signal.

CVDW: Band 3+1, EE voice and 1800 4G plus universal 3G, no Band 8 legacy 2G channel

The CVDW pairs Band 3 EE voice and 1800 data with Band 1 universal 3G. It carries no Band 8 2G channel, so the trade is the EE-family voice and 1800 data layer against a general legacy 2G call path. For an EE-business commuter, rideshare driver or fleet hotspot depending on Band 3 calling and 1800 data, the CVDW covers what the CVGW leaves native; for an O2/Vodafone-only legacy handset route, the CVGW keeps the 900 MHz 2G path the CVDW does not offer.

The £0 tie decides by which voice band your handset needs

Because Band 1 and the hardware class match, the CVDW-versus-CVGW choice is a pure voice-band question: EE-family SIMs needing boosted Band 3 voice and 1800 data = CVDW; O2/Vodafone-only older handsets relying on Band 8 2G calling with light modern data = CVGW. A CVGW bought for an EE hotspot or business call underperforms from day one, because the missing Band 3 cannot be added by an antenna or splitter.

Two further £259.99 Boost4U chassis appear in the wider vehicle range and should be kept in view even though they do not match this head-to-head quartet. The CVGD pairs Band 8 general 2G voice with Band 3 at 1800 MHz for EE data, carrying neither Band 20 rural 4G data nor Band 1 universal 3G; it suits a narrow EE-data-plus-legacy-voice route where no universal fallback is expected. The CVCG pairs Band 20 O2/Vodafone 4G data with Band 8 900 MHz O2/Vodafone 2G voice and SMS, skipping Band 1 at 2100 MHz; EE, Three, giffgaff, Sky, Tesco and other MVNOs receive Band 20 data only with no boosted 3G or voice layer on this chassis.

Neither chassis delivers the CVDW's Band 3 EE voice plus Band 1 universal 3G combination. A driver comparing against them should apply the same rule: the fixed band pair at the amplifier stage cannot be changed by swapping aerials, adding a splitter or changing settings, so choosing the right chassis day one avoids a second £259.99 unit later.

A booster only amplifies the physical host network's band; the MVNO signal rides that host's mast, band and coverage. The table below maps the common UK MVNOs to their host network so the same chassis choice applies whether the SIM is branded direct or virtual.

When a crew vehicle carries a mix of branded SIMs, match the booster to the weakest critical row: an EE BT or Virgin call that must stay connected through bodywork needs the Band 3 channel the CVDW carries; an O2 giffgaff or Sky SIM that already holds Band 1 3G fallback on the shared chassis does not require Band 3, and a Three iD or Smarty SIM relies on Band 1 rather than any legacy 2G channel. Coverage and data speed still follow the host mast and local load; the booster does not change which network a SIM is registered to.

Buyers often ask whether a 3G booster still matters given network shutdowns, and whether a 2G booster is safer. The honest UK picture is mixed by host network, and a booster should match the handset and SIM rather than chase a headline retirement date.

2G remains the legacy voice layer for O2 and Vodafone customers who keep older handsets, while EE and Three rely on VoLTE over 4G for calls where coverage allows; 3G has been progressively retired on some hosts while remaining the fallback on others in rural areas, which is why a vehicle booster with Band 1 keeps a universal option for older devices and non-VoLTE MVNOs such as giffgaff, Sky and Tesco in weak patches. No £259.99 chassis tunes 5G, and none can compensate for a mast that has switched both 3G and 2G off locally: the booster only cleans and spreads whatever the external donor provides.

Practical guidance: a modern handset with VoLTE enabled keeps EE calls over Band 3 1800 4G, which makes the CVDW's Band 1 3G layer a fallback rather than the primary call path; an older device or an MVNO without VoLTE needs the Band 1 3G channel the CVDW and CVCW and CVGW provide, but the CVCD cannot supply it on any host. A CVGW owner who needs 2G should confirm their SIM is O2 or Vodafone first; an EE or Three driver relying on a legacy voice layer should not expect the Band 8 channel to work on their network at all.

The Boost4U vehicle chassis in this comparison are built for a moving cabin, and they should not be treated as a substitute for a fixed-building booster. A fixed home booster is designed for a static building: it uses a mains-powered 5V adapter on a wall-mounted outdoor aerial, routes longer cable runs through the property, and covers a fixed 100m² or 200m² building space for a set number of users in rooms, upstairs and downstairs zones. Its outdoor aerial can be clamped or bracket-mounted to a roof or wall in a fixed position aligned to the best mast direction.

The CVDW vehicle chassis solves a different problem: the magnetic omni aerial clips to the steel roof in seconds, the 5V DC feed runs off the cigarette-lighter socket, and the 100m² rating describes the cabin, van interior, SUV passenger area or small caravan the whip can reach from one booster in motion. It installs in under 15 minutes without tools and can be transferred between vehicles in the same short window, which a fixed home booster cannot do because its outdoor mount, cable and mains feed are permanently sited. A static caravan on a long-term pitch can run the vehicle chassis from the optional 240V AC adapter as a parked compromise, but it should not be expected to cover two floors, a large house or an office the way a fixed home unit with a wall aerial does.

Practical rule: if the signal problem moves with you across commutes, delivery routes, trips or sites, the vehicle chassis applies; if the weak signal sits in one fixed room, shop floor, office or home that does not change address, the fixed home booster family applies instead. Mixing the two means either a cabin booster spread too thin over rooms, or a fixed unit mis-mounted to a moving vehicle bodywork and power feed.

Walk the branches top to bottom and stop at the first yes.

Branch 1 — Do you need boosted EE-family voice calls on Band 3 for an EE, BT, Asda, Virgin, Orange, T-Mobile or TPO SIM inside the car, van, taxi, HGV or motorhome?

Yes: the CVCD leaves voice native and the CVGW and CVCW skip Band 3 voice, so move to Branch 2 for the fallback question. No, your SIMs are O2, Vodafone or Three only: move to Branch 4 for the data question.

Branch 2 — Do you also need a universal Band 1 3G fallback on O2, Vodafone and Three crew or passenger devices, rather than relying on VoLTE or native calling?

Yes: choose the CVDW at £259.99, Band 3+1, EE voice and 1800 4G plus Band 1 universal 3G, 15 users, magnetic omni 5 dBi on the 5m lead, AGC. No, every handset rides EE on VoLTE and you want a second Band 20 rural 4G layer instead: move to Branch 3.

Branch 3 — Is the vehicle a data-first delivery van or office car where dual 4G data matters and calls already hold natively on VoLTE?

Yes: CVCD at £259.99, Band 20+3 dual 4G data; accept that no Band 1 3G fallback and no dedicated voice band are boosted. No (mixed hosts, older handsets, call fallback required): stay with the CVDW's Band 1 layer.

Branch 4 — For non-EE SIMs, do you need rural Band 20 4G data for O2, Vodafone or Three maps, apps, streaming or a hotspot?

Yes: CVCW at £259.99, Band 20+1, rural 4G data plus Band 1 universal 3G; accept that no Band 3 EE voice channel is boosted. No (voice over 3G or legacy 2G only, light data): move to Branch 5.

Branch 5 — Without Band 3 or Band 20, is the job general Band 8 2G voice on an older O2/Vodafone handset plus Band 1 3G for an older-device route?

Yes: CVGW at £259.99, Band 8+1, legacy 2G plus universal 3G, no boosted modern 4G. No (modern data required, 5G needed, a whole building, more than 15 active devices, or both Band 3 and Band 20 simultaneously in one box): a single £259.99 vehicle chassis is the wrong tool; choose a fixed home booster, plan two band-specific vehicle units, or pick the matched chassis from Branches 2 to 4.

The scenario table shows why chassis matching beats a universal label: the motorhome and rideshare cases need the Band 3 voice layer, the legacy-voice HGV case can tolerate the CVGW only when data stays light, and the data-first delivery van can stay on the CVCD without paying for a Band 1 layer it never uses.

Day one, all four tie at £259.99. The five-year total separates a correctly matched vehicle chassis from a late band purchase or an antenna upgrade that cannot fill the missing band.

The CVCW buyer who takes on an EE crew member or business account later adds a Band 3 unit on top of the same £259.99 already spent; the CVCD buyer who needs universal 3G adds a Band 1 unit; the CVGW buyer who later needs EE 1800 data or Band 20 rural data adds the missing band unit. Only a correctly matched single CVDW, CVCW, CVCD or CVGW closes the vehicle job day one; over-buying a modern data chassis for a legacy-voice route pays for a Band 20 or Band 3 layer unused, while under-buying the CVCD for app data and calling forces a second purchase later.

The CVDW kit includes the booster, the magnetic-mount omni 5 dBi aerial on a 5-metre low-loss coax lead, the interior 3 dBi whip antenna, the 5V DC cigarette-lighter adapter, cable and mounting hardware. The CVCW, CVCD and CVGW share the compact cigarette-box chassis, AGC and vehicle mount class. Basic setup takes under 15 minutes without tools: fix the magnetic aerial to the highest clear roof point on steel, use the adhesive pad or screw mount on aluminium or fibreglass, run the lead through a door seal or window gap, clip the interior whip at least one to two metres away to stop feedback, connect both antennas before powering on, and read steady green before testing on the road.

The expansion note reads verbatim: "Expandable coverage by adding indoor antenna, splitter, cable if the outside signal is strong." In a large motorhome, coachbuilt caravan, HGV sleeper, horsebox or multi-compartment van, extra interior antennas, a splitter and extension coax can place a second antenna in the living area or bunk while the cab keeps the main whip; extend only where the external donor is strong enough to feed extra cells. An optional 240V AC adapter runs the unit from a static caravan hookup, and a mobile power bank works where no socket exists.

All four carry UKCA, CE and RoHS marks, are Ofcom licence-exempt for vehicle use, ship free within the UK on 1 to 2 day handling plus 10 to 15 day transit, and carry a 365-day mail return window. The £259.99 prices are valid to 2027-10-25, listed InStock as NewCondition, and ship to GB, DE, FR, IT, ES, NL, BE, AT, SE, DK, FI, IE, PT, PL and CZ. The booster needs 1 to 2 bars of external donor signal to amplify; it cannot create signal in a fully dead spot.

Mixed-network car, van, taxi or motorhome needing Band 3 EE-family voice and 1800 4G plus Band 1 universal 3G for EE, O2, Vodafone and Three: CVDW at £259.99, the only chassis carrying the EE voice channel alongside universal 3G in one Ofcom-legal UKCA kit with the magnetic omni and AGC.

O2/Vodafone/Three data-first route needing rural Band 20 4G plus universal 3G with no EE voice requirement: CVCW at £259.99, Band 20+1, accepting that Band 3 EE calls stay native.

Data-first delivery van or office car where dual 4G matters and VoLTE calling already holds: CVCD at £259.99, Band 20+3, accepting that no 3G fallback and no dedicated voice band are boosted.

Legacy-voice older-device route with light data and no modern 4G requirement: CVGW at £259.99, Band 8+1, accepting that Band 3 and Band 20 are never boosted.

Quick verdict: the CVDW and CVCW speak the same Band 1 universal 3G language at the same gain, output, AGC and £259.99 price, with the CVCW trade being a Band 20 rural 4G layer in place of the Band 3 EE voice channel; the CVDW and CVCD speak the same Band 3 1800 data language at the same price, with the CVCD trade being a second Band 20 4G layer in place of the Band 1 universal 3G fallback; the CVDW and CVGW speak the same Band 1 3G language, with the CVGW trade being a Band 8 legacy 2G voice path in place of the Band 3 EE voice and 1800 4G layer — pick the CVDW for EE-family calls plus all-network fallback, the CVCW for rural O2/Vodafone/Three 4G data, the CVCD for dual 4G data where calling holds natively, and the CVGW for a legacy 2G-plus-3G voice route without modern 4G.