5G Phones UK

5G phones UK shoppers are searching for right now usually fall into two camps: people who assume every new handset automatically means blistering download speeds everywhere they go, and people who have heard 5G is mostly marketing and haven’t bothered looking further. The reality sits between those two positions, and understanding where you land matters more than you’d think when you’re choosing between a refurbished iPhone and a refurbished Samsung Galaxy. This guide walks through what 5G genuinely changes, which handsets in our phones range actually support it, and whether chasing 5G should shape your next purchase at all.

What “5G” Actually Means for Your Phone

Every generation of mobile network gets attached to a number, and every number arrives with promises that outrun what most people experience day to day. 5G is the fifth generation of cellular technology, following on from 4G/LTE, and it was designed around three separate improvements rather than one single headline figure: faster throughput, lower latency, and greater network capacity. Only the first of those tends to get mentioned in adverts, which is part of why expectations and reality drift apart.

Speed – the headline number versus everyday reality

In laboratory conditions, 5G can theoretically reach speeds many times higher than 4G. In the real world – on a bus, in a shopping centre, standing in your kitchen – you’ll typically see a meaningful but far more modest uplift over a strong 4G connection. That’s still enough to make a genuine difference for video calls, large app downloads, and streaming in higher resolutions, but it is not the ten-times-faster fantasy some marketing implies. Expect noticeably quicker page loads and app updates, not a different category of experience.

Latency – why it matters more than raw speed for most people

Latency is the delay between your phone asking for data and the network responding. 4G typically sits somewhere in the 40-50ms range; 5G networks are built to bring that down substantially. Lower latency is what actually improves the feel of video calls, competitive mobile gaming, and anything involving real-time interaction – arguably a bigger quality-of-life upgrade for typical use than the top-line speed figure most people fixate on.

Network capacity – handling congestion in busy places

The third pillar, and the one almost nobody talks about, is capacity. 5G networks can handle far more connected devices in the same area without everyone’s speeds collapsing. This is why 5G rollouts have focused heavily on stadiums, city centres, and transport hubs – places where a crowd of phones competing for the same 4G mast used to mean everyone’s connection slowed to a crawl. If you regularly find your signal grinding to a halt at concerts or on commuter trains, this is the specific problem 5G is built to solve.

Sub-6GHz versus mmWave – the type of 5G most UK phones actually use

There are two broad flavours of 5G radio technology: sub-6GHz, which behaves similarly to 4G in terms of range and building penetration, and mmWave, which is dramatically faster but has very short range and struggles to pass through walls. The vast majority of UK 5G coverage – and the vast majority of what UK networks have deployed – is sub-6GHz. mmWave deployments exist but are rare and highly localised. Practically, this means UK 5G behaves more like “faster, more capable 4G” than the science-fiction version sometimes depicted online, which is a useful thing to know before you buy a phone under the assumption that 5G alone will transform your day-to-day usage.

5G Coverage in the UK: Setting Realistic Expectations

This is the section most buying guides skip, and it’s arguably the most important one. 5G is not universally available across the UK, and treating it as a given rather than checking your own postcode is the single most common mistake buyers make.

Where 5G is strong today

Coverage is genuinely good in most major UK cities and large towns – London, Manchester, Birmingham, Leeds, Glasgow, Edinburgh, and similar urban centres have solid 5G availability across all four major networks. If you live and work primarily in or around a city, there’s a strong chance you’ll get reliable 5G for the majority of your daily usage.

Where you’ll still fall back to 4G

Rural and semi-rural areas tell a different story. Coverage thins out quickly once you’re away from population centres, and plenty of villages, smaller towns, and countryside routes still rely entirely on 4G, with some more remote spots limited to 3G or even 2G for voice calls. This isn’t a flaw specific to any one network – it reflects the practical economics of mast deployment, since rural cell towers serve far fewer people per pound spent than urban ones. If a large part of your life happens outside a city, a 5G-capable phone will still work brilliantly on 4G in those areas, but you shouldn’t buy specifically because of 5G if you rarely see it in practice.

Checking coverage before you commit to a handset

Every major UK network publishes an online coverage checker where you can enter your postcode and see indicative 5G, 4G, and 3G availability for your home, workplace, and any other locations you care about. It takes two minutes and will tell you far more about your realistic experience than any spec sheet. We’d recommend doing this before you buy, whether you’re eyeing something from our refurbished iPhone range or comparing options on pay monthly.

• Check coverage at your home address, not just your general town or city
• Check your workplace or commute route separately, since coverage can vary significantly over short distances
• Remember that indoor coverage is often weaker than outdoor coverage on the same street
• Ask your specific network provider directly if you’re unsure – coverage differs between networks even in the same postcode

Which Refurbished iPhones and Samsung Galaxy Phones Support 5G

Once you understand what 5G delivers and where it’s actually available, the next practical question is which handsets support it. This matters more when buying refurbished, since you’re often choosing from a slightly wider spread of generations than you would on a new-phone shelf.

iPhone: 5G arrived with the iPhone 12 generation

Apple introduced 5G support across the board with the iPhone 12 range in late 2020 – every model in that generation, from the standard iPhone 12 through the 12 Mini and 12 Pro Max, includes a 5G radio. Anything from the iPhone 12 series onward, including the iPhone 13 and later generations, is 5G-capable. Anything from the iPhone 11 or earlier is not, regardless of how well specced or well maintained the individual unit is – this is a hardware limitation, not a software one, so no update will ever add 5G to those older models.

iPhone 12, 12 Mini, 12 Pro, and 12 Pro Max

All four variants in the 12 family support 5G identically at the network level; the differences between them come down to screen size, camera hardware, and build materials rather than connectivity. This makes the standard iPhone 12 a genuinely sensible refurbished pick for anyone who wants 5G without paying for the Pro camera system they may never fully use.

iPhone 13 and newer generations

The iPhone 13 generation carried 5G forward with improved modem efficiency, which also translated into better real-world battery life on 5G compared with the first-generation implementation in the iPhone 12. Every iPhone released since has continued to support 5G as standard.

Samsung Galaxy: 5G from the S20 generation onward

Samsung’s flagship 5G rollout arrived slightly earlier than Apple’s, with the Galaxy S20 series launching in early 2020 as Samsung’s first mainstream 5G flagship family. From the S20 onward – through the S21, S22, and S23 generations – 5G support has been standard across the range within our refurbished Samsung catalogue. It’s worth noting that a small number of early Galaxy S20-era variants in some markets shipped as 4G-only, so it’s always worth confirming the exact model rather than assuming by series name alone.

Samsung Galaxy A-series 5G models

Samsung’s mid-range A-series is where things get more mixed. Earlier A-series phones were largely 4G-only, but from certain generations onward – broadly speaking, many A-series handsets released from around 2021 – 5G-capable variants became common, often sold alongside a cheaper 4G-only sibling of the same model name. This is the range where checking the exact model number really matters, because “Galaxy A53” and “Galaxy A53 5G” are genuinely different devices with different radios, not just a labelling quirk.

5G-Capable Generations by Brand

Is 5G Worth Prioritising When You Buy a Phone?

This is the honest question most retailers avoid, because “it depends on where you live and how you use your phone” doesn’t make for a punchy headline. But it’s the true answer.

Who benefits most from 5G today

If you live or work in a city or large town with confirmed strong coverage, regularly stream or download large files on the move, attend events or use public transport where networks get crowded, or you simply want a phone that will stay relevant for several more years, 5G is a genuinely worthwhile feature to prioritise. It’s not a gimmick for these use cases – it’s a real, noticeable improvement to daily connectivity.

Who can comfortably skip it for now

If you live rurally with patchy or no confirmed 5G coverage, mostly use your phone on home Wi-Fi rather than mobile data, or you’re working to a tighter budget and would rather put that money towards storage, camera quality, or battery health, then a well-specified 4G handset from our cheap smartphones or best budget smartphones range may serve you just as well, at least for now. This is also worth weighing up against how you plan to pay – our pay as you go phones range and our pay monthly options both include 5G-capable and 4G-only handsets side by side, so the network generation doesn’t have to dictate how you spread the cost.

A simple way to decide

1. Check 5G coverage at your home, workplace, and regular commute using your network’s official coverage checker
2. Think honestly about how much mobile data you use away from Wi-Fi in a typical week
3. Consider how long you intend to keep the phone – the longer your planned ownership, the more future-proofing matters
4. Weigh whether the generation gap between a 5G-capable refurbished model and a cheaper 4G-only one is worth it for your budget
5. If still unsure, lean towards 5G-capable where the price difference is small, since it costs you little and protects against future network changes

The Battery Trade-Off Nobody Mentions

5G isn’t free from a power perspective, and it’s a detail that rarely makes it into buying guides.

Why 5G radios draw more power

Maintaining a 5G connection, particularly when a phone is constantly switching between 5G and 4G as signal strength changes, uses more energy than a stable 4G connection alone. Early 5G phones – including the first-generation iPhone 12 – were noted for this being a more noticeable drain than later models managed. The radio hardware itself, plus the extra processing involved in managing dual connectivity, adds up over a full day of use.

How manufacturers have mitigated this over time

Each subsequent generation of 5G modem has generally improved power efficiency meaningfully. Newer chipsets are considerably better at managing the handoff between 5G and 4G, and many phones now let you manually restrict connectivity to 4G if you’d rather trade network speed for extra battery life on a particular day – useful to know if you’re heading somewhere with patchy coverage anyway, where the phone would otherwise burn extra power constantly searching for a 5G signal it can’t find.

Battery health checks during refurbishment

Because battery performance is such a central part of how a 5G phone actually feels to use, every handset we sell goes through a battery health assessment as part of our grading process before it’s listed. You can read more about how this is measured in our guide on checking phone battery health, which explains what the percentage figures actually mean and what’s realistic to expect from a well-maintained refurbished device.

4G vs 5G: What Actually Changes

Stripped of marketing language, here’s a straightforward side-by-side of what genuinely differs between the two network generations.

Why a Refurbished 5G Flagship Beats a New Mid-Range Phone

This is where refurbished buying genuinely earns its reputation as the smarter route for most people, rather than simply the cheaper one.

Getting flagship-level connectivity without new-phone pricing

A new mid-range phone released today will typically have decent, but not class-leading, cameras, processors, and displays – because manufacturers hold their best hardware back for flagship lines. A refurbished flagship from a couple of generations back, on the other hand, usually still outperforms a brand-new mid-ranger on camera quality, screen technology, and overall build, while including full 5G support as standard. You’re effectively buying yesterday’s best rather than today’s average, and for connectivity specifically, that’s a trade firmly in your favour, since 5G support hasn’t meaningfully changed in fundamentals since it first arrived on flagship devices. From £69, a certified refurbished handset gives you a realistic route into that flagship tier without stretching to new-phone pricing – full stop, that’s the only price mentioned anywhere on this page, because our real focus is on helping you buy the right device rather than chasing a number. If you want a sense of how quickly Samsung’s own line-up moves, our latest Samsung phone buyer’s guide is a useful companion read alongside this one.

What “refurbished” actually means at iExpert Market

“Refurbished” gets used loosely across the industry, so it’s worth being specific about our own process. Every device we sell has been inspected, tested, and restored to a clearly graded working condition before it’s listed – this isn’t a euphemism for “used and hoped for the best.” You can read our full explanation of what the term covers in our guide on what refurbished actually means, and if you’re still weighing up whether refurbished is right for you at all, our guide on whether refurbished phones are good covers that question directly.

Our grading process explained

Each phone is assessed against a consistent set of criteria covering cosmetic condition, screen integrity, battery health, and full functional testing of cameras, speakers, charging, and connectivity – including confirming 5G modem function on capable models. Grades are assigned honestly rather than optimistically, so what you see listed reflects what you’ll actually receive.

Data wiping and security

Before any device is listed, all previous data is professionally and permanently wiped using industry-standard secure erasure methods, and every account association is removed. You’re never buying a phone with someone else’s data risk attached, and every unit is checked to confirm it isn’t reported lost or stolen before it goes anywhere near a listing.

What’s included with every refurbished device

• A clear, honest cosmetic and functional grading, described accurately rather than inflated
• A confirmed battery health check, detailed in our battery health guide
• Secure data wiping and an account-free, ready-to-activate handset
• Warranty cover explained in full in our warranty policy
• Ongoing customer support if anything doesn’t match its listed condition

Future-Proofing Your Next Phone Purchase

Buying with a few years of relevance in mind is worth thinking about, especially given how UK networks are managing older infrastructure.

Carriers phasing down 3G – and eventually 4G

UK mobile networks have already switched off, or are in the process of switching off, their 3G networks entirely, reallocating that spectrum to improve 4G and 5G capacity instead. While 4G is expected to remain the backbone of UK mobile connectivity for a good while yet, the long-term direction of travel across the industry points toward 5G as the eventual primary network, with 4G gradually receding into a supporting role over the coming years, much as 3G has. A 5G-capable phone insulates you from having to think about any of this for the lifetime of the device.

How long a 5G phone should stay relevant

A well-maintained flagship-grade phone, refurbished or otherwise, typically remains fully capable for several years of software updates and everyday performance. Pairing that lifespan with 5G support means you’re not just buying for today’s networks but for the infrastructure UK carriers are actively building toward.

• Software support windows on flagship iPhones and Galaxy S-series phones typically run several years from original release
• Network operators continue investing in 5G expansion rather than 4G, shifting the balance of coverage quality over time
• A 5G radio costs nothing extra to use if you’re in a 4G-only area, so there’s no downside to having the capability even where it isn’t yet active

How to Check If a Specific Refurbished Handset Is 5G-Capable

Because refurbished stock spans multiple years and generations, it’s worth knowing how to confirm 5G support on a specific unit rather than assuming based on the model family alone.

Checking the model number and spec sheet

The listed spec sheet for any handset should explicitly state its network connectivity, including 5G support where applicable. For Samsung’s A-series in particular, look for “5G” directly in the model name or description, since near-identical model numbers can differ purely on this point.

Questions worth asking before you buy

1. Does the listing explicitly confirm 5G connectivity for this exact model, not just the wider series?
2. Has the 5G modem been functionally tested as part of the grading process, not just assumed from the model name?
3. Is the device unlocked, or tied to a specific network that may affect which bands are usable?
4. Does the seller offer a clear returns or warranty policy if connectivity doesn’t match what was advertised?

What a reputable refurbisher should confirm

A trustworthy seller should be able to tell you plainly whether a specific unit supports 5G, rather than giving a vague answer based on the general product family. If you’re ever unsure when browsing our full phones range, our support team can confirm connectivity details for any specific listing before you commit.

Environmental and Support Benefits of Buying Refurbished

5G connectivity is one part of the decision, but it sits alongside broader reasons refurbished buying makes sense.

Reducing e-waste with every unit kept in circulation

Manufacturing a new smartphone carries a significant environmental cost, from raw material extraction through to assembly and shipping. Every refurbished phone that finds a new owner is one fewer new device manufactured and one fewer old device heading to landfill or informal recycling. Choosing a 5G-capable refurbished flagship rather than a brand-new mid-range phone gets you comparable – often better – hardware while meaningfully reducing your personal contribution to electronic waste.

Warranty, returns, and ongoing support

Buying refurbished shouldn’t mean buying with less protection than buying new. Every device comes with clear warranty terms, detailed in full in our warranty policy, and our customer support team is available if you have questions about a device’s condition, connectivity, or performance after it arrives. That combination of proper grading, secure data wiping, and genuine aftercare is what separates a considered refurbished purchase from a gamble on an unknown seller.

• Clearly stated warranty periods on every listing, not buried in small print
• A dedicated support team for post-purchase questions or issues
• Transparent grading so the condition you receive matches the condition described

Bringing It All Together

5G phones UK buyers are weighing up today offer a genuinely useful upgrade over 4G – better latency, stronger performance in crowded places, and network capacity that pays off especially in cities – but 5G is not yet a universal blanket of coverage across the country, and it shouldn’t be the only factor driving your decision. If you live or work somewhere with confirmed strong coverage, a refurbished 5G-capable iPhone from the 12 series onward or a Samsung Galaxy from the S20 generation onward gives you flagship-level connectivity, properly graded and battery-checked, without new-phone pricing. If your coverage is patchy or your budget is the primary driver, a well-specified 4G handset remains a perfectly sensible choice – you can compare that route directly in our iPhone vs Samsung comparison, or browse camera-focused advice in our best camera phone guide if photography matters more to you than network generation. Whichever direction you go, checking your own postcode’s coverage first will tell you more than any spec sheet ever could.