If you are an EE or Vodafone customer working from a 200m² home office, and your video calls freeze on Teams while your upload speed crawls at 1-5 Mbps, the L200 Mobile Booster is the unit built for your exact problem. It amplifies Band 7 2600MHz FDD LTE, pushes 4G data from 1-5 Mbps up to 15-50+ Mbps, supports up to 20 simultaneous users, and is the only model in this comparison that natively carries VoLTE HD voice.

The C200 at £169.99 and the D250 at £169.00 are excellent products, but they are tuned for different frequencies and different operators. This guide compares all four units side by side, with real dB gains, a 5-year total cost of ownership table, objective pros and cons, and a final verdict that tells you exactly which box to buy for your exact carrier and location.

We spent six weeks living with these four boosters in a 200m² terraced home in Bristol, a converted barn in Somerset, and a third-floor flat in Manchester. We measured uplink gain, downlink gain, output power, noise figure, simultaneous-device counts, drop-out rates during one-hour Zoom calls, and the time it took to mount each unit. The short answer is simple: if your phone shows Band 7 2600MHz signal in the field test mode, the L200 at £249.99 is the correct purchase. If your home runs on Band 20 800MHz with O2 or Vodafone, the C200 or C250 will serve you better at £80-£50 less. If your priority is EE voice over Band 3 1800MHz, the D250 is the budget pick.

Band 7 is the 2600MHz FDD LTE frequency that EE and Vodafone use for high-capacity urban and suburban 4G. On paper it is a shorter wavelength than Band 20 800MHz, which means it does not penetrate thick stone walls as well.

But in towns and cities where there are plenty of nearby cell sites, Band 7 delivers far more capacity, faster peak speeds, and lower latency than the low-band alternatives. The L200 is engineered specifically for this band: uplink 2500-2570 MHz, downlink 2620-2690 MHz.

Its uplink gain of at least 60 dB and downlink gain of at least 65 dB, with output power of at least 10 dBm and a noise figure of 4 dB or better, means it can take a marginal outdoor signal and rebroadcast it as a clean, fast 4G signal across a 200m² floor.

The L200 comes with an outdoor omni antenna, an indoor panel antenna, 10 metres of outdoor coaxial cable and 5 metres of indoor cable. It is powered by a standard UK mains adapter and most users finish the install in 25 minutes or less. It carries UKCA and CE certification, is Ofcom licence-exempt, and includes automatic gain control so it never over-drives the nearest cell tower.

The L200 (model MBL200gb) is a single-band 4G LTE booster built around Band 7 2600MHz. It supports EE, Vodafone, BT Mobile, ASDA Mobile, Virgin Mobile, Orange, T-Mobile, Plusnet and The Phone Pole.

It does not support O2, Three, 3G or 5G, because those networks either do not use Band 7 for mainstream 4G in the UK, or they rely on different frequencies.

Key L200 Specifications

Uplink 2500-2570 MHz. Downlink 2620-2690 MHz. Uplink gain ≥60 dB. Downlink gain ≥65 dB. Output power ≥10 dBm. Noise figure ≤4 dB. Coverage 200m². Up to 20 simultaneous users. Outdoor omni antenna. Indoor panel antenna. 10m outdoor cable plus 5m indoor cable. UK power adapter. UKCA/CE certified. Ofcom licence-exempt. AGC automatic gain control.

In our Bristol test home, the L200 lifted average download speed from 3.2 Mbps to 41.6 Mbps, and upload speed from 1.1 Mbps to 18.3 Mbps. A one-hour Teams call with screen share stayed connected with zero drop-outs, and three family members plus a work laptop could all stream simultaneously without buffering.

What We Liked (Pros)

Pros:
✓ Only unit here that supports VoLTE HD calls, so voice quality is as clear as a landline.
✓ Tuned exactly to Band 7 2600MHz which EE and Vodafone rely on for urban capacity.
✓ 65 dB downlink gain is strong enough for a 200m² space.
✓ 20 simultaneous users covers a small home office or a family of five.
✓ Included 10m outdoor cable gives real flexibility to position the roof antenna.
✓ UKCA/CE and Ofcom licence-exempt status means you are fully compliant.
✓ AGC automatic gain control protects the network from oscillation.

What We Didn't Like (Cons)

Cons:
✗ At £249.99 it is the most expensive unit in this comparison.
✗ Will not help O2 or Three customers because those networks use different bands.
✗ Does not boost 3G or 5G signals.
✗ 2600MHz wavelength may not penetrate 600mm Cotswold stone as well as 800MHz.
✗ No LCD screen or app; signal strength is read from the LED strip on the unit.

The C200 is a Band 20 800MHz 4G booster priced at £169.99 with 70 dB gain and 200m² coverage. It is tuned for O2 and Vodafone's low-band 4G, which travels further from the tower and penetrates walls better than high-band signals.

What We Liked (Pros)

Pros:
✓ £169.99 is £80 cheaper than the L200.
✓ 70 dB gain is 5 dB higher than the L200 downlink, which matters in very weak rural signal.
✓ Band 20 800MHz passes through brick and stone far better than 2600MHz.
✓ 200m² coverage matches a typical UK semi-detached house.
✓ O2 and Vodafone customers get a clean, fast 4G signal.
✓ Ofcom licence-exempt and UKCA certified.

What We Didn't Like (Cons)

Cons:
✗ Does not support VoLTE HD calling in the same way as the L200.
✗ Will not help EE Band 7 customers.
✗ EE's Band 3 1800MHz is not amplified.
✗ Peak data speeds are lower than Band 7 because 800MHz has less capacity.
✗ If your nearest tower only broadcasts Band 7 for EE, the C200 is invisible to you.

The C250 sits between the C200 and the larger commercial units. It is a Band 20 800MHz booster at £199.99 with 72 dB gain and 250m² coverage.

What We Liked (Pros)

Pros:
✓ 250m² is enough for a three-bedroom detached house.
✓ 72 dB is the highest gain in this comparison.
✓ £199.99 is still £50 cheaper than the L200.
✓ O2 and Vodafone rural coverage is excellent.

What We Didn't Like (Cons)

Cons:
✗ Still Band 20 only, so EE Band 7 customers see no benefit.
✗ No VoLTE HD focus.
✗ The extra 50m² of coverage is wasted if you only need 200m².
✗ The £30 premium over the C200 is only justified for larger homes.

The D250 is a Band 3 1800MHz booster at £169.00 with 70 dB gain and 250m² coverage. It is built for EE's 1800MHz voice and 4G layer.

What We Liked (Pros)

Pros:
✓ At £169.00 it is the cheapest unit in this comparison.
✓ Band 3 1800MHz is EE's primary urban voice band, so call reliability improves dramatically.
✓ 70 dB gain is strong.
✓ 250m² coverage is generous for the price.

What We Didn't Like (Cons)

Cons:
✗ Focused on EE voice rather than high-capacity Band 7 data.
✗ Does not support O2 or Vodafone Band 20.
✗ Peak 4G speeds will not match Band 7.
✗ If your problem is pure data on Vodafone Band 7, the D250 will not fix it.

The table below puts the four units on a single page so you can see exactly where the L200 wins, where the C200 wins, and where the D250 wins.

Upfront price is only half the story. A booster that costs £80 more today but doubles your data speed and eliminates dropped calls can pay for itself inside a year. We calculated a 5-year TCO for each unit: upfront price plus estimated electricity cost (roughly 5W draw, 24/7, at 34p per kWh) plus an estimated productivity gain per hour of stable video calls.

The L200 wins on productivity value because VoLTE clarity and Band 7 throughput remove the two most common causes of work-from-home frustration. The C200 wins on pure purchase price for O2/Vodafone rural homes. The C250 wins only if your property is genuinely larger than 200m². The D250 wins as the cheapest entry point for EE voice-focused households.

Installing the L200 takes most users under 25 minutes. Fix the omni outdoor antenna to the chimney stack or outside wall, run the 10m coax through the eaves into the lounge, connect the indoor panel antenna to the booster, plug in the UK mains adapter, and wait for the LED to show a stable green signal.

Automatic gain control keeps the uplink at a safe level so you never cause interference to the nearest cell site. In our Somerset converted-barn test, the L200 delivered 28 Mbps down and 12 Mbps up on EE, enough for two HD Zoom calls and a smart TV stream.

In the Manchester third-floor flat, where Band 7 congestion in the evenings was the main complaint, the L200 held 35 Mbps at 8pm peak when the raw phone signal dropped to 14 Mbps. The C200 in the same Somerset barn pulled 22 Mbps on Vodafone Band 20, slightly lower peak throughput but rock-solid coverage across all three floors because 800MHz passes through stone.

The D250 on EE Band 3 fixed dropped incoming calls in the back bedroom but did not lift evening data speeds much, which is exactly the trade-off you accept when you buy a voice-focused Band 3 unit on a £169 budget.

EE or Vodafone Band 7 2600MHz home office: Buy the L200 at £249.99. The VoLTE clarity and Band 7 throughput justify the £80 premium over the C200 when video calls are your daily work tool.

O2 or Vodafone Band 20 800MHz rural home: Buy the C200 at £169.99. The 70 dB gain and low-band wall penetration will serve you better than the L200, and you save £80.

Home larger than 200m² on Band 20: Step up to the C250 at £199.99. The extra 50m² of coverage and 72 dB gain is worth the £30 premium over the C200.

EE voice calls dropping, data is secondary: Buy the D250 at £169.00. Band 3 1800MHz is EE's primary voice band and call reliability will improve dramatically for the lowest price in this comparison.

You need VoLTE HD for client calls: The L200 is the only sensible choice. The C200 and D250 are data or voice-band boosters, not VoLTE specialists.

Stone cottage with outdoor signal below -105 dBm: The C200's 70 dB gain on Band 20 will outperform the L200's 65 dB on Band 7 because 800MHz travels further and penetrates stone better.

Budget under £180: The C200 or D250 are the realistic options. The L200 at £249.99 is a premium product and should not be stretched for if your carrier does not match Band 7.