Answer up front: if your household or small office mixes EE-family SIMs (EE, BT Mobile, Asda Mobile, Virgin Mobile) with O2, Vodafone or Three members and needs boosted EE voice calls alongside a universal 3G fallback rather than a data-only chassis, the DW100 at £185.99 is the pick; it pairs Band 3 at 1800 MHz for EE-family voice, text and 1800 MHz 4G LTE with Band 1 at 2100 MHz for 3G UMTS data, voice and SMS across all four networks, cleans at ≥45 dB uplink and ≥50 dB downlink, outputs ≥10 dBm behind a ≤5 dB noise figure, and covers a 100m² (1,076 ft²) space for up to 10 users with the omni outdoor aerial, whip indoor antenna and 10m coax. If your household prioritises rural Band 20 800 MHz 4G data over calls, the CD100 at £185.99 tunes Band 20+3 data-only; if it prioritises O2/Vodafone rural 4G plus universal 3G but never needs boosted EE voice, the CW100 at £185.99 tunes Band 20+1. All three cost the same and share the same area, users, gain, output and kit.

The £0.00 DW100-versus-CD100 and DW100-versus-CW100 gaps buy different second bands rather than more machine: same £185.99, same 100m², same 10 users, same ≥45/≥50 dB gain, same ≥10 dBm output, same 10m cable, same omni and whip. The DW100's Band 3 at 1800 MHz serves the EE family's voice calls and 1800 4G, and its Band 1 at 2100 MHz serves a universal 3G fallback on every network; the CD100's Band 20 at 800 MHz serves rural 4G data with no voice band and no Band 1; the CW100's Band 20 at 800 MHz serves rural 4G data while its Band 1 serves universal 3G, but it never tunes Band 3. No single chassis in this entry family covers Band 3 voice, Band 20 rural 4G and Band 1 3G at once, because these channels are separate entries each chassis pairs in twos.

This page compares the three £185.99 Boost4U chassis side by side rather than in a roundup: the DW100, the CD100 and the CW100. It separates the two roles each chassis fills — a data or voice carrier band versus a fallback band — sizes the identical cabin, user, gain and output spec, maps each MVNO to its host network, and gives a five-branch decision tree so the choice follows which SIMs you hold, whether VoLTE covers your calls, and whether EE voice, rural data or universal 3G matters most indoors.

All three 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 NR; the DW100 and CW100 carry Band 1 3G, while the CD100 carries neither a voice band nor 3G. All run from the AC 100–240V 50/60Hz to DC 5V UK Type plug. The rest of this page numbers every band and £0.00 gap before you order.

Before the tables, three rules keep the comparison honest. First, the chassis split into three distinct UK bands: Band 3 at 1800 MHz (uplink 1710–1785 MHz, downlink 1805–1880 MHz) carries the EE family voice calls, text and 1800 MHz 4G; Band 1 at 2100 MHz (uplink 1930–1990 MHz, downlink 2110–2180 MHz) carries 3G UMTS data, voice and SMS for EE, O2, Vodafone and Three; Band 20 at 800 MHz (uplink 832–862 MHz, downlink 791–821 MHz) carries the rural 4G data channel across the major networks. Each chassis pairs exactly two of these channels, so the comparison decides which pair your home needs.

Second, the pairings differ: the DW100 pairs Band 3 with Band 1 — EE voice and 1800 4G plus universal 3G; the CD100 pairs Band 20 with Band 3 — rural 4G data plus EE 1800 data, with no call band and no 3G; the CW100 pairs Band 20 with Band 1 — rural 4G data plus universal 3G, with no Band 3 voice channel. Third, between all three the area, users, gain, output and kit match, so the choice is purely "which two bands do my SIMs need indoors?"

Because the price, 100m² space, 10-user cap, ≥45/≥50 dB gain and ≥10 dBm output are identical, this comparison never turns on power or size; it turns on band plan and host network. A household that only ever holds one network's SIMs can use the narrowest data unit; a mixed-network home with EE-family voice requirements and O2/Vodafone/Three members needs the Band 3 plus Band 1 pairing of the DW100.

Coverage figures assume reasonable donor signal outside and sensible antenna separation; the rated 100m² covers a single room, studio flat, small apartment, home office or small shop. On a strong −70 to −90 dBm donor each chassis can add up to 2 indoor antennas via a 2-way splitter and extra cable; a weak −97 to −105 dBm donor uses the optional Yagi aimed at the nearest mast. The tables below compare specs, the £0.00 tie and day-one versus five-year cost before the decision tree.

Read the voice and fallback rows before the price rows: the DW100 keeps Band 3 EE voice plus Band 1 universal 3G, the CD100 keeps Band 20 plus Band 3 data with neither a voice channel nor 3G, and the CW100 keeps Band 20 plus Band 1 rural data and 3G without the EE voice band; then read coverage, users, gain and output, which match exactly.

Because price, area, users, gain and output are identical, no gap buys more power or more space; every £0.00 difference buys a different band pair, and none of the three raises the serving mast's data speed, which still comes from the base station and network load.

The DW100 and CD100 are a £0.00 tie on upfront price, coverage (100m²), users (10), gain (≥45/≥50 dB), output (≥10 dBm), kit and cable; even the omni, whip and UK plug match. Both tune Band 3 at 1800 MHz for the EE 1800 data layer, so the whole difference is the second band the chassis amplifies: Band 1 universal 3G on the DW100 versus Band 20 rural 800 MHz 4G on the CD100.

DW100 Band 1: universal 3G fallback for all four networks

The DW100 adds Band 1 at 2100 MHz (uplink 1930–1990 MHz, downlink 2110–2180 MHz). On EE, O2, Vodafone and Three this provides a 3G UMTS data, voice and SMS fallback where 4G alone weakens, including MVNOs riding those hosts. Together with Band 3 it also keeps the EE-family voice path boosted; it does not tune Band 20 rural 800 MHz, so an O2, Vodafone or Three SIM receives Band 1 3G indoors rather than a boosted 800 MHz 4G channel.

CD100 Band 20: rural 4G data, no voice band, no 3G

The CD100 instead tunes Band 20 at 800 MHz for rural 4G data across EE, O2, Vodafone and Three alongside the Band 3 1800 data layer. It carries no dedicated voice channel and never amplifies Band 1, so a call that would ride a boosted voice or 3G path stays native indoors; an O2/Vodafone/Three member has rural 4G data but no boosted fallback if 4G drops. The CD100 is the right box for a data-first household that already holds reliable native calls, or a rural home where 800 MHz coverage is the weak link rather than voice.

The £0.00 tie decides by second band, not by spec

Because price, coverage, users, gain, output and kit are identical, the DW100-versus-CD100 choice is a pure band-pair question: EE-family home needing boosted calls and universal 3G fallback = DW100; rural data-first home needing Band 20 800 MHz and already comfortable with native calling = CD100; mixed where both Band 3 voice and Band 20 rural data matter = no single chassis solves both, and a band-specific second unit or larger system is required rather than forcing one box.

The DW100 and CW100 also tie on price, 100m², 10 users, gain, output and kit, and both keep Band 1 at 2100 MHz for universal 3G. The difference is the other band: the DW100 tunes Band 3 at 1800 MHz for EE-family voice and 1800 4G; the CW100 tunes Band 20 at 800 MHz for rural 4G data.

CW100 Band 20: rural 4G for O2/Vodafone and Three data

An O2 or Vodafone-led household gets boosted Band 20 rural 4G that the DW100 cannot provide, and keeps the same Band 1 3G fallback; in return, EE-family SIMs receive Band 1 3G fallback only, with the Band 3 voice channel left native rather than boosted, and there is no Band 3 1800 data layer. The CW100 cannot add Band 3 later, and the DW100 cannot add Band 20 later; these are fixed band pairs, not switchable modules.

DW100 Band 3: EE-family calls and 1800 4G on the EE host

The DW100's Band 3 keeps direct EE calls, text and 1800 4G boosted together with the BT Mobile, Asda Mobile, Virgin Mobile, Orange, T-Mobile and The People's Operator MVNOs that host on EE. This suits an EE-led flat, a mixed-network shared house where EE members need reliable calls, and a small office with EE business phones; it does not reproduce a dedicated Band 20 rural 4G channel for O2/Vodafone data. Match the second band to how your handsets actually hold data and call today.

UK MVNOs do not run their own masts; they ride a host network, and a booster amplifies the host's band plan rather than the SIM brand. The table below maps every listed SIM to the channel it receives on each of the three £185.99 chassis.

Read the EE-host rows first: only the DW100 pairs Band 3 boosted voice with Band 1 fallback; the CD100 gives EE data only, and the CW100 gives EE Band 1 3G without a voice channel. Then read the O2, Vodafone and Three rows: the CW100 is the only chassis that gives those hosts both Band 20 rural data and Band 1 fallback, the CD100 gives Band 20 data without fallback, and the DW100 gives Band 1 fallback without Band 20 data.

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

Branch 1 — Do the home or small office hold EE-family SIMs (EE, BT Mobile, Asda Mobile, Virgin Mobile) whose voice calls drop indoors, with O2, Vodafone or Three members needing a 3G fallback too?

Yes: the Band 3 voice channel plus Band 1 universal 3G matters, so stay inside the DW100 path. Move to Branch 2 for the second band question; do not pick the CD100, which has no voice or 3G, or the CW100, which has no Band 3 voice.

Branch 2 — Is the household O2/Vodafone-led in a rural village, where Band 20 800 MHz data is the weak link and EE voice never appears?

Yes: CW100 at £185.99, Band 20+1, rural 4G plus Band 1 universal 3G, accept that EE-family calls are not boosted on Band 3. No (mixed EE household, town-centre flat, or EE voice is the priority): DW100 at £185.99, Band 3+1, EE voice and 1800 4G plus Band 1 3G, 100m², 10 users.

Branch 3 — Are calls already reliable natively on VoLTE, and the only problem is rural Band 20 4G data across EE, O2 and Vodafone, with no 3G fallback required?

Yes: CD100 at £185.99, Band 20+3, rural 4G data over 100m² for 10 users. Do not reach for the DW100 if Band 20 data is the real gap, because it never tunes Band 20.

Branch 4 — Do you need both a Band 20 rural 4G channel and a Band 3 EE voice channel in the same home, in addition to Band 1 3G?

Yes: none of the three chassis covers all three bands; plan a band-specific second unit or a larger multi-antenna system rather than overloading one £185.99 box. No: return to Branch 1, 2 or 3.

Branch 5 — Do you need 5G NR, a multi-floor whole house beyond 100m², or more than 10 simultaneous users?

Yes: a £185.99 entry room unit is undersized or band-wrong; choose a larger multi-antenna or 5G-capable system. No and the space fits 100m²: return to Branch 1, 2 or 3 and order the matched unit.

Small EE-family flat in a town centre. Direct EE phones plus a BT Mobile or Asda Mobile member, calls dropping in the bedroom, data adequate on 1800 4G: the DW100 keeps Band 3 calls boosted and Band 1 3G as a fallback; the CD100 would leave calls native and the CW100 would leave the EE voice channel native.

Mixed-network shared house. EE, giffgaff and Tesco Mobile SIMs on three different phones, one tablet on Three: the DW100 gives the EE member boosted Band 3 voice and every member a Band 1 3G fallback; no Band 20 rural 4G is missed inside a town property with moderate donor signal.

Rural O2/Vodafone cottage. O2 and Vodafone SIMs, 800 MHz the only 4G channel available indoors, EE SIMs absent: the CW100 pairs Band 20 rural data with Band 1 3G, which the DW100 cannot match because it omits Band 20.

Data-first home office on VoLTE. Calls already hold over 4G voice on every handset; the weak point is rural Band 20 download for video meetings on EE, O2 and Vodafone: the CD100 concentrates the budget on rural 4G data without paying for a voice or 3G channel the home does not use.

Small shop or home office with mixed tills and phones. EE business phone, O2 supplier line and Three staff SIM: the DW100 keeps the EE voice path boosted while Band 1 holds fallback for the other hosts; a till or card reader needing Band 20 rural data should compare the CW100 or a larger system rather than stretching the entry chassis.

Day one, all three tie at £185.99. The five-year total separates them when a second purchase appears.

The CD100 buyer who later needs boosted voice or a 3G fallback pays a second band-specific unit on top of the £185.99 already spent; the CW100 buyer who later brings an EE phone into the home does the same for Band 3. Only the correctly matched single DW100, CD100 or CW100 closes the job day one at £185.99. Because all three cost the same, the risk is buying the wrong band pair rather than overspending, and a second-box correction doubles the outlay.

The DW100 box at £185.99 holds the booster, the omni outdoor aerial, the whip indoor antenna, the UK Type power adapter and the 10m outdoor low-loss coax; paid variants are the high-gain Yagi directional aerial, 20/30/40/50m external cable and the 18KA lightning surge protector for an exposed aerial or long roof run. On a strong −70 to −90 dBm donor, a 2-way splitter and extra coax feed up to 2 indoor antennas; a weak −97 to −105 dBm donor uses the optional Yagi aimed at the nearest mast. The CD100 and CW100 boxes carry the same cable stack, omni and whip for their respective band pairs.

Basic setup takes 10 to 15 minutes without tools: mount the omni with a clear mast view, keep the whip a sensible distance inside, run the 10m coax from the BS outdoor port to the MS indoor port, power from the UK plug, and read steady green before testing. Keep a minimum 10m vertical separation where the floor plan allows, and do not power on until both antennas are connected. The expansion note reads "Expandable coverage by adding indoor antenna, splitter, cable if the outside signal is strong."

All three carry UKCA, CE and RoHS, are Ofcom licence-exempt, ship free within the UK (handling 1–2 days, transit 10–15 days), and carry a 365-day mail return window. The £185.99 DW100 price is valid to 2027-10-25, InStock NewCondition, and ships to GB, DE, FR, IT, ES, NL, BE, AT, SE, DK, FI, IE, PT, PL and CZ; the CD100 and CW100 at £185.99 follow the same shipping and return terms. Each booster needs 1 to 2 bars of external donor signal to amplify and cannot create signal in a fully dead spot.

EE-family flat or mixed-network shared house needing boosted Band 3 calls and Band 1 universal 3G, 100m², 10 users: DW100 at £185.99, Band 3+1, the only chassis that keeps EE-family voice alongside all-network 3G fallback.

Rural O2/Vodafone home needing Band 20 800 MHz data plus Band 1 3G, with no EE voice requirement: CW100 at £185.99, Band 20+1, accept that Band 3 EE calls are not boosted.

Data-first VoLTE home needing rural Band 20 across EE/O2/Vodafone with no voice or 3G fallback required: CD100 at £185.99, Band 20+3, accept that calls stay native indoors.

Quick verdict: at the £0.00 three-way tie, DW100 serves Band 3 EE voice plus Band 1 universal 3G, CD100 serves Band 20 rural data with no call layer, and CW100 serves Band 20 rural data plus Band 1 3G without the EE voice band; match the band pair to the SIMs and hosts your handsets actually use rather than chasing the largest spec sheet, because all three deliver identical gain, output, area and user capacity.