Full Technical Specifications

What's in the Box

How the W250 Works

1. Receives: The outdoor 8 dBi Yagi antenna captures weak Band 1 (2100 MHz) 3G signal from any network from the nearest mast.
2. Amplifies: The booster unit amplifies the signal by up to 60 dB (downlink) while filtering noise and interference.
3. Broadcasts: The indoor antenna rebroadcasts the boosted signal throughout up to 250 m², supporting 25 simultaneous users.
4. Returns: Uplink signals from your phone are amplified and sent back to the mast via the outdoor antenna.

Pros & Cons

Advantages

• Dual 3G + 3G: Boosts both voice calls/SMS and 3G data on Band 1 — unlike call-only boosters.
• Universal network support: Works with ALL UK networks — EE, O2, Vodafone, Three and every MVNO — on Band 1 3G.
• 250 m² coverage: Suitable for 3–5 bedroom houses, small offices, shops and pubs.
• 25 simultaneous users: Supports households and small businesses with multiple devices.
• Complete kit: Everything included — antennas, cable, power adapter, brackets. No extra purchases needed.
• Affordable: At £169.00, one of the cheapest dual 3G boosters for all networks in the UK.
• Ofcom legal: Licence-exempt, UKCA/CE certified, automatic gain control prevents network interference.
• 365-day returns: Longest money-back guarantee in the UK market — risk-free trial.
• Free UK shipping: No additional delivery costs.
• DIY installation: 30–60 minutes with basic tools, no engineer required.

Disadvantages

• Band 1 only (2100 MHz): Does not boost Band 8 (900 MHz) or Band 20 (800 MHz) signals. Check your phone's band before buying.
• 3G only: Boosts 3G UMTS (calls + data) only. Does not boost 4G LTE or 5G. For 4G, choose the C-series (Band 20) or D-series (Band 3).
• 250 m² limit: Not suitable for properties larger than 250 m² — consider the C500 or C1000 for larger spaces.
• Requires 1–2 bars outdoor signal: Cannot create signal from nothing. If you have 0 bars outside, no booster will work.
• 10 m cable included: May need a 20 m upgrade for two-storey houses with roof mounting (available at checkout).
• 10 m antenna separation: Requires adequate vertical distance between outdoor and indoor antennas to prevent oscillation.
• Standard delivery 10–15 days: Not next-day delivery. Plan ahead if needed urgently.
• No 5G support: No consumer booster currently supports 5G. The W250 handles 3G and 3G only.
• Directional outdoor antenna: Must be pointed toward the nearest mobile mast for optimal performance.
• Indoor antenna is 5 dBi: Lower gain than premium models — suitable for 250 m² but not larger.

Supported Networks Detail

Installation Guide

1. Find the signal: Use your phone (3G/3G mode) or the CellMapper app to find the strongest outdoor 3G signal point and the nearest mast direction.
2. Mount outdoor antenna: Install the 8 dBi Yagi on an exterior wall, pole or chimney at 3–5 m height, pointed toward the nearest EE mast.
3. Run cable: Route the 10 m coaxial cable from the outdoor antenna to the booster location inside. Upgrade to 20 m at checkout if needed.
4. Connect booster: Connect outdoor cable to the BS port, indoor antenna to the MS port, plug in power.
5. Maintain separation: Ensure at least 10 m vertical distance between outdoor and indoor antennas to prevent oscillation.
6. Test and adjust: Power on, check LED indicators, test signal bars throughout the property. Adjust the outdoor antenna direction for best results.

Installation time: 30–60 minutes. Tools needed: Drill, screwdriver, spanner, ladder.

Frequently Asked Questions

Will the W250 work with my EE phone?

Yes. The W250 boosts Band 1 (2100 MHz), which EE uses for both 3G calls and data. All EE phones support Band 1. To confirm, dial *3001#12345#* on iPhone → Serving Cell Info → check Freq Band Indicator, or use LTE Discovery on Android.

Does the W250 improve 3G data speed?

Yes. The W250 amplifies 3G UMTS signals on Band 1 (2100 MHz), which can improve data speeds from 1–5 Mbps (no signal) to 10–30 Mbps (good signal), depending on your nearest mast's capacity and backhaul.

Will it work with O2 or Vodafone?

No. The W250 is a Band 1 (2100 MHz) booster optimised for all UK networks. O2 and Vodafone primarily use Band 8 (900 MHz) for calls and Band 20 (800 MHz) for 3G. For O2/Vodafone, choose the Boost4U C250 (Band 20 3G) or G250 (Band 8 calls).

What size property does the W250 cover?

Up to 250 m², which is typically a 3–5 bedroom house, a small office, a shop or a pub. Actual coverage depends on outdoor signal strength, building materials and antenna placement. For properties over 250 m², consider the C500 (500 m²) or C1000 (1000 m²).

Is the W250 legal in the UK?

Yes. The W250 is Ofcom licence-exempt with UKCA/CE certification. It operates within Ofcom's power limits and includes automatic gain control (AGC) to prevent interference to the mobile network. Legal for home and business use without a licence.

How much does the W250 cost?

£169.00 GBP including the booster, outdoor antenna, indoor antenna, 10 m cable, UK power adapter, mounting brackets and user manual. Free UK shipping. Optional upgrades: 20 m cable, high-gain antenna, surge protector.

What if there is no signal outside my house?

The W250 can only amplify existing signal — it cannot create signal from nothing. You need at least 1–2 bars of outdoor EE Band 1 signal. If you have 0 bars everywhere outside, contact EE to report a coverage issue — no consumer booster can help in that situation.

How many phones can use the W250 at once?

Up to 25 simultaneous users. This is sufficient for most households and small businesses. The booster amplifies the signal for all devices in range, not a fixed number — all 25 can be on calls or data simultaneously.

What is the return policy?

The W250 comes with a 365-day money-back guarantee. If you are not satisfied for any reason within 365 days of purchase, return the unit for a full refund (minus shipping costs). This is the longest return policy in the UK signal booster market.

How long does delivery take?

Standard UK delivery is 10–15 business days with free shipping. Express delivery may be available at checkout for an additional fee. The W250 is shipped from the UK warehouse.

Related Blog Articles

• Best Mobile Signal Booster for all networks UK 2025 — Comparison & Reviews
• Boost4U W250 Review UK — 3G Call Booster Tested
• How to Boost 3G Signal at Home — 250m² Complete Guide
• Band 1 2100MHz Signal Booster for all networks BT ASDA UK — Full Guide