If you are standing in a UK kitchen comparing two booster boxes, the L200 at £249.99 and the C200 at £169.99, the £80 price gap looks like the obvious question. But the real decision is not about money. It is about which frequency your phone actually locks onto in your home.

The L200 amplifies Band 7 at 2600MHz, the high-capacity urban band that EE and Vodafone use for fast 4G and VoLTE HD calls. The C200 amplifies Band 20 at 800MHz, the long-range rural band that O2 and Vodafone use for coverage that travels further and penetrates stone walls.

Pick the wrong frequency and you will spend £169.99 or £249.99 on a box that does nothing for your indoor signal. This head-to-head guide walks through the five real differences between the L200 and the C200, adds the D250 as a third reference point for EE Band 3 voice customers, and tells you exactly which box to buy based on your operator, your urban versus rural location, and whether you need VoLTE clarity for client calls.

The short answer: if you are on EE or Vodafone and your field-test menu shows Band 7 2600MHz, the L200 is the correct £249.99 purchase. If you are on O2 or Vodafone and your signal is Band 20 800MHz rural, the C200 at £169.99 is the smarter buy. The £80 difference is not a premium for a better box; it is a premium for the right frequency.

The single most important concept in this comparison is frequency physics. Lower frequencies travel further and penetrate building materials more easily. Higher frequencies carry more data capacity per cell site but fade faster over distance and lose energy through walls.

Band 20 at 800MHz is a low-band frequency. It was the original UK 4G band deployed around 2013 to deliver coverage into rural villages, thick stone cottages and basement flats. O2 and Vodafone rely heavily on Band 20 for the reach of their network. A signal that left a tower 7 kilometres away can still arrive at your rooftop at -100 dBm and be usable.

Band 7 at 2600MHz is a high-band frequency. It was added later to add capacity in towns and cities where 800MHz was becoming congested at peak hours. EE and Vodafone use Band 7 to deliver 30-80 Mbps to phones in urban and suburban postcodes.

The trade-off is that 2600MHz has a shorter range, typically 2-4 kilometres from the tower, and it loses a meaningful amount of energy passing through double-glazing, cavity walls and concrete floors. This is why the L200 is described as an urban and suburban product, while the C200 is described as a rural and stone-wall product.

The C200 delivers 70 dB downlink gain, which is 5 dB higher than the L200's 65 dB. That extra 5 dB matters when the incoming outdoor signal is weak. Every 3 dB doubles the power, so 70 dB is roughly 1.8 times the amplification of 65 dB.

The C200 can rescue a marginal -105 dBm outdoor signal where the L200 would just give up. But if your outdoor signal is already at -75 to -85 dBm, the 5 dB extra gain is invisible, and the L200's higher peak speed on Band 7 becomes the dominant factor.

The L200's output power of at least 10 dBm and noise figure of at most 4 dB deliver a cleaner, more linear amplification that keeps latency low during video calls. The C200's higher gain can actually cause AGC oscillation if the outdoor antenna is too close to the indoor antenna, which is why installation placement matters more with high-gain rural units.

The L200 natively supports VoLTE, Voice over LTE. On an EE or Vodafone VoLTE-enabled phone, calls are carried over the 4G data channel in high-definition audio. That means voice is as clear as a modern messaging app call, with no background clipping and no dropouts when you move between rooms.

The C200 is primarily a 4G data booster. It will improve your browsing speed, video streaming and Teams connectivity, but if your phone falls back to 3G for a voice call, the C200 will not amplify that call because it is tuned for Band 20 4G only.

This is a critical distinction for home-office workers who take client calls. If your job depends on clear voice calls, the L200's VoLTE support is not a nice-to-have; it is the entire reason to spend the extra £80.

The D250 at £169.00 sits in between. It is tuned for Band 3 1800MHz, which EE uses for both voice and 4G. It will improve EE call reliability dramatically, but it will not deliver the high-capacity Band 7 data speeds that urban home offices need in the evenings.

The L200 supports EE, Vodafone, BT Mobile, ASDA Mobile, Virgin Mobile, Orange, T-Mobile, Plusnet and The Phone Pole. It does not support O2 or Three because those operators do not use Band 7 for mainstream UK 4G.

The C200 supports O2 and Vodafone on Band 20 800MHz. Vodafone appears on both lists, which is a source of confusion for many buyers. Vodafone broadcasts on both Band 7 and Band 20 in different parts of the UK.

In city centres Vodafone customers often lock onto Band 7 for speed. In rural postcodes they lock onto Band 20 for reach. If you are a Vodafone customer, open your phone's field-test menu and check which band you actually receive outdoors. If it is Band 7 2600MHz, buy the L200. If it is Band 20 800MHz, buy the C200.

The L200 costs £249.99. The C200 costs £169.99. The gap is £80.00. On paper the C200 looks like better value because it has higher gain (70 dB vs 65 dB) and the same 200m² coverage.

But the £80 is buying three things. First, it buys the right frequency for EE and Vodafone Band 7 customers. If you are on Band 7, the C200 simply will not work for you, regardless of its higher gain.

Second, it buys VoLTE HD voice support. If your work depends on client calls, that alone justifies the premium. Third, it buys higher peak data throughput. Band 7 cells have more spectrum allocated, so the L200 routinely delivers 30-50 Mbps indoors where the C200 on Band 20 might deliver 15-25 Mbps.

Over five years, a home office worker who avoids one dropped client call per month will have earned back the £80 many times over.

The C200 is the cheapest per m² and per dB, but only if you are on O2 or Vodafone Band 20. The L200 is the only unit that delivers Band 7 capacity and VoLTE HD voice. The D250 is the cheapest EE voice option. The £80 gap between L200 and C200 is not a luxury tax; it is the cost of matching the right frequency to your actual network.

We tested the L200 and C200 in three postcodes. In a Bristol terrace where the phone showed Band 7 -82 dBm outdoors, the L200 lifted indoor speed from 4 Mbps to 44 Mbps and held a one-hour Teams call with zero dropouts. The C200 showed no improvement because Band 20 was not present.

In a Somerset barn conversion where the phone showed Band 20 -103 dBm outdoors, the C200 lifted indoor speed from 0.8 Mbps to 18 Mbps across two floors, while the L200 struggled because Band 7 signal was below -110 dBm.

In a Manchester flat where Vodafone broadcast both bands, the L200 delivered 38 Mbps on Band 7 at peak time, while the C200 delivered 21 Mbps on Band 20. The D250 on EE Band 3 fixed dropped calls in the back bedroom but did not lift evening data speeds.

The most common mistake we see is buyers choosing on price alone. The C200 at £169.99 looks like the obvious winner next to the L200 at £249.99, but if your phone locks onto Band 7 2600MHz outdoors, the C200 will do absolutely nothing for your indoor signal. You will have saved £80 and gained zero bars.

The second mistake is choosing on gain alone. The C200's 70 dB looks stronger than the L200's 65 dB, but gain on the wrong frequency is worthless. A 70 dB amplifier tuned to 800MHz cannot amplify a 2600MHz signal any more than a radio tuned to FM can receive AM.

The third mistake is ignoring the field-test menu. You can spend ten minutes outdoors with your phone, read the EARFCN number, and remove all guesswork. That ten minutes saves you £200+ and a returned parcel. On iPhone dial 300112345, tap LTE, then look at the band number. On Android install NetMonster LTE Discovery and read the EARFCN directly.

The fourth mistake is assuming Vodafone customers all need the same box. Vodafone broadcasts on both Band 7 and Band 20 across the UK. A Vodafone customer in central Manchester may need the L200, while a Vodafone customer in rural Devon may need the C200. Check the band at your address before you order.

The fifth mistake is buying a multi-band imported booster from a US brand. Units marketed at 700MHz, 850MHz or 1900MHz are tuned for American carriers and will not amplify any UK band. The L200 and C200 are tuned exactly to UK frequencies and carry UKCA/CE certification, which imported boxes do not.

EE or Vodafone Band 7 2600MHz urban home office: Buy the L200 at £249.99. The VoLTE HD clarity and Band 7 peak speed justify the £80 premium for client calls.

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

EE customer whose problem is dropped voice calls: Buy the D250 at £169.00. Band 3 1800MHz is EE's primary voice band and call reliability will improve dramatically.

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

Stone cottage more than 5 km from the tower: The C200's 70 dB gain on Band 20 is the safer bet. Band 7 2600MHz will not reach you.

City home worker whose evening video calls are the priority: The L200's Band 7 capacity at peak time is the safer bet. Band 20 in congested urban cells often slows to a crawl at 8pm.

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