Answer up front: for a mixed-network two-bedroom flat, small home or home office that needs EE, O2, Vodafone and Three 4G data plus a universal 3G fallback across 200m² for 20 users at ≥60/≥65 dB, the CW200 at £205.99 is the pick; it pairs Band 20 at 800 MHz data with Band 1 at 2100 MHz 3G UMTS data, voice and SMS on every network, outputs ≥10 dBm behind a ≤5 dB noise figure, and ships the 5 dBi omni, 3 dBi whip, 10m outdoor plus 5m indoor coax and UK plug. For a single 100m² room with 10 users and the same universal Band 20+1, the CW100 at £185.99 saves £20 on a smaller gain tier; for an O2/Vodafone-only household relying on legacy 2G calling, the CG200 at £205.99 tunes Band 8 instead of Band 1.

The CW200-versus-CW100 gap is a capacity and gain step, not a network change: both carry Band 20+1 and universal 3G, but the CW200 doubles area (200m² against 100m²), doubles users (20 against 10), raises gain from ≥45/≥50dB to ≥60/≥65dB and adds the 5m indoor cable for £20. The CW200-versus-CG200 gap is a band choice at the same £205.99, same 200m², same 20 users and same gain class: Band 1 universal 3G versus Band 8 O2/Vodafone 2G.

This page compares the three Boost4U chassis side by side rather than in a roundup: the CW200 at £205.99, the CW100 at £185.99 and the CG200 at £205.99. It separates the shared Band 20 data layer from the two different choices a buyer must make — how much room and how many devices (CW200 vs CW100) and which fallback band (Band 1 universal 3G vs Band 8 O2/Vodafone 2G) — and gives a decision tree so the choice follows area, headcount, SIM mix and whether VoLTE covers calls today.

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; the CW200 and CW100 carry Band 1 3G, while the CG200 carries Band 8 2G instead. All run from the AC 100–240V to DC 5V UK Type plug. The rest of this page numbers every band, £20 step and spec before you order.

Before the tables, three rules keep the comparison honest. First, Band 20 at 800 MHz (uplink 832–862 MHz, downlink 791–821 MHz) is shared by all three and carries EE, O2, Vodafone and Three 4G data, so data capability is not the deciding factor between CW200 and CW100; the deciding factor is scale. Second, the CW200 and CW100 add Band 1 at 2100 MHz (uplink 1930–1990 MHz, downlink 2110–2180 MHz) for 3G UMTS data, voice and SMS on every network, while the CG200 instead tunes Band 8 at 900 MHz for O2/Vodafone 2G. Third, between CW200 and CG200 the price, area, users, gain, output and kit match, so that tie decides by fallback band; between CW200 and CW100 the band plan matches and the £20 decides by area, users and gain.

Because the CW200 and CW100 share the Band 20+1 plan, this comparison never turns CW200 against CW100 on network coverage; it turns on whether the home fills 100m² for 10 users or 200m² for 20. A single studio or one-room home office cannot use the extra area, so the CW100's £20 saving is rational; a two-bedroom flat with a living room, spare bedroom and home office needs the CW200's doubled scale and higher gain to hold one universal fallback.

Coverage figures assume reasonable donor signal outside and sensible antenna separation; the rated 200m² covers a two-bedroom flat or small home, and 100m² covers a single room, studio or small apartment. 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 £20 step and day-one versus five-year cost before the decision tree.

Read the band row before the price row: CW200 and CW100 share Band 1 universal 3G, CG200 keeps Band 8 O2/Vodafone 2G; then read the scale rows, where CW200 doubles CW100's area, users and gain at the same band plan, and matches CG200 on scale while differing only in fallback band.

The £20 between CW100 and CW200 buys area, users, gain and the indoor cable, never a new network; the £0.00 tie between CW200 and CG200 buys a different fallback band rather than more scale. A buyer who stretches CW100 beyond 100m² pays for a larger tier later, and a CG200 buyer who later needs EE/Three fallback pays a Band 1 unit on top.

The CW200 and CW100 share an identical band plan: Band 20 at 800 MHz for EE, O2, Vodafone and Three 4G data, plus Band 1 at 2100 MHz for 3G UMTS data, voice and SMS on every network. No network one covers, the other misses; the £20 difference exists entirely to serve more space and more devices with a cleaner incoming signal.

CW100: the 100m²/10-user room unit at £185.99

The CW100 reaches 100m² (1,076 ft²) for up to 10 users at ≥45 dB uplink / ≥50 dB downlink gain, ≥10 dBm output, the 5 dBi omni, 3 dBi whip and 10m outdoor coax. It suits a studio flat, single room, one-bedroom apartment or a dedicated home office where the active devices sit around one whip. Buyers here should not pay for area they never occupy.

CW200: the 200m²/20-user two-bedroom tier at £205.99

The CW200 reaches 200m² (2,153 ft²) for up to 20 users at ≥60 dB uplink / ≥65 dB downlink gain, a +15 dB step over the CW100, with the same ≥10 dBm output and a 5m indoor run added to the 10m outdoor coax. The higher gain cleans a marginal rural donor harder before the signal reaches a second bedroom or an office zone, and the doubled user rating keeps phones, tablets and laptops from crowding one cell.

The £20 step decides by floor plan, not by network

Because coverage and fallback are identical, the CW100-versus-CW200 choice is a pure sizing question: measure the rooms one whip must serve, count active devices, and only pay £20 when the home genuinely fills 200m² and approaches 20 connections. A single-room buyer on CW200 overpays for unused scale; a two-bedroom buyer on CW100 gets congestion and weak reach at the far wall.

The CW200 and CG200 tie on price, area, users, gain, output and kit, differing only in the fallback band the chassis amplifies, because both share Band 20 for EE, O2, Vodafone and Three 4G data.

CW200 Band 1: universal 3G for all four networks

The CW200 tunes 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 networks. It does not tune Band 8 O2/Vodafone 2G; a legacy 2G-only O2/Vodafone handset that cannot fall to 3G relies on VoLTE or its native network rather than a boosted 2G channel.

CG200 Band 8: O2/Vodafone 2G only

The CG200 tunes Band 8 at 900 MHz instead, which carries O2 and Vodafone 2G voice calls and SMS, and 900 MHz reaches deeper through masonry than higher bands. On EE and Three it provides Band 20 data only with no boosted call fallback; it never tunes Band 1 3G. The CG200 is the right box when the household SIMs are O2/Vodafone-led and legacy 2G calling matters to those two networks only.

The £0.00 tie decides by call path, not by scale

Because price, coverage, users, gain, output and kit are identical, the CW200-versus-CG200 choice is a pure fallback question: mixed-network home needing universal 3G = CW200; O2/Vodafone-only household needing legacy 2G = CG200; mixed where both Band 1 3G and O2/Vodafone 2G matter = no single chassis solves both, and a band-specific second unit is required rather than forcing one box.

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

Branch 1 — Does the space fill roughly 200m² across two rooms or a small home, with up to 20 active phones, tablets and laptops?

Yes: scale belongs on the CW tier rather than the 100m² CW100; move to Branch 2 for the band question. No: under 100m² for 10 users, jump to Branch 4.

Branch 2 — Do the household SIMs mix EE, O2, Vodafone and Three, or do guests/devices change network between rooms?

Yes: the universal Band 1 3G layer matters, so choose the CW200 at £205.99, Band 20+1, 200m², 20 users, ≥60/65dB. No and all SIMs are one network: move to Branch 3.

Branch 3 — Are all SIMs O2/Vodafone-led and do the handsets rely on legacy 2G rather than VoLTE or 3G?

Yes: CG200 at £205.99, Band 20+8, O2/Vodafone 2G calls, accept EE/Three data-only. No (modern VoLTE phones, mixed networks, rural mast swing): stay with the CW200's Band 1 universal fallback.

Branch 4 — Is the job a single room, studio or one-office under 100m² for about 10 users on a mixed-network Band 20+1 plan?

Yes: CW100 at £185.99, same universal Band 1 3G on the smaller scale, save £20. No and the space grows beyond 100m²: return to Branch 1 for the CW200.

Branch 5 — Do you need 5G, a multi-floor whole house beyond 200m², more than 20 users, or both Band 1 3G and Band 8 2G at once?

Yes: a £185.99 or £205.99 single-fallback room unit is undersized or band-wrong; choose a larger multi-antenna or band-specific system. No and the space fits 200m²: return to Branch 1, 3 or 4 and order the matched unit.

Day one, the CW200 and CG200 tie at £205.99; the CW100 sits £20 below at £185.99. The five-year total separates a correctly matched unit from a late step-up or second band.

The CW100 buyer who expands to two rooms must step up a tier rather than stretch a 10-user box; the CG200 buyer who later adds EE or Three devices pays a Band 1 unit on top of the £205.99 already spent. Only the correctly matched single CW200, CW100 or CG200 closes the job day one; over-buying CW200 for one room wastes £20, while under-buying CW100 for a flat forces a second purchase.

The CW200 box at £205.99 holds the booster, the 5 dBi omni outdoor aerial, the 3 dBi whip indoor antenna, the UK power adapter, the 10m outdoor low-loss coax and the 5m indoor coax; paid variants are the high-gain Yagi, 20/30/40/50m external cable and 18KA protector, max combo £325.99. On a strong −70 to −90 dBm donor, a 2-way splitter and extra coax feed up to 2 indoor antennas for adjacent rooms; a weak −97 to −105 dBm donor uses the optional Yagi aimed at the nearest mast. The CW100 box carries the 10m outdoor stack at £185.99, and the CG200 box mirrors the CW200 cable stack for Band 8.

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 outdoor and indoor coax, power from the UK plug, and read steady green before testing. 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 £205.99 CW200 price is valid to 2027-10-20, InStock NewCondition, and ships to GB, DE, FR, IT, ES, NL, BE, AT, SE, DK, FI, IE, PT, PL and CZ; the CW100 at £185.99 and CG200 at £205.99 follow the same shipping and return terms.

Two-bedroom flat, small home or home office filling 200m², up to 20 mixed-network devices, universal 3G across EE/O2/Vodafone/Three: CW200 at £205.99, Band 20+1, ≥60/65dB, the only chassis that pairs universal Band 1 with this scale.

Single room, studio or one-office under 100m² for 10 mixed-network users: CW100 at £185.99, Band 20+1, save the £20 you never use.

O2/Vodafone-only household on legacy 2G at 200m²: CG200 at £205.99, Band 20+8, accept EE/Three data-only.

Quick verdict: the CW200 and CW100 speak the same universal Band 1 language, with the £20 difference buying 200m², 20 users and a higher gain tier rather than a new network; the CW200 and CG200 cost the same and match on scale, so there the Band 1 versus Band 8 call path decides — pick CW200 for mixed-network 3G, CW100 for one room, CG200 for O2/Vodafone 2G only.