Compare the latest Samsung Galaxy S23 deals from 4 UK networks. Filter by data, contract length and upfront cost, and plant trees with every switch.
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Galaxy S23 128GB Phantom Black
O2 · Black
Galaxy S23 128GB Phantom Black
O2 · Black
Galaxy S23 128GB Cream
O2 · White
Galaxy S23 128GB Cream
O2 · White
Galaxy S23 128GB Phantom Black
iD Mobile · Black
Galaxy S23 128GB Phantom Black
iD Mobile · Black
Galaxy S23 128GB Phantom Black
iD Mobile · Black
Galaxy S23 128GB Phantom Black
iD Mobile · Black
Galaxy S23 128GB Phantom Black
iD Mobile · Black
Galaxy S23 128GB Phantom Black
iD Mobile · Black
Galaxy S23 128GB Phantom Black
iD Mobile · Black
Galaxy S23 128GB Phantom Black
iD Mobile · Black
Galaxy S23 128GB Phantom Black
O2 · Black
Galaxy S23 128GB Phantom Black
O2 · Black
Galaxy S23 128GB Cream
O2 · White
Galaxy S23 128GB Cream
O2 · White
Galaxy S23 128GB Cream
O2 · White
Galaxy S23 128GB Cream
O2 · White
Galaxy S23 128GB Phantom Black
iD Mobile · Black
Galaxy S23 128GB Phantom Black
iD Mobile · Black
Galaxy S23 128GB Phantom Black
iD Mobile · Black
Galaxy S23 128GB Phantom Black
iD Mobile · Black
Galaxy S23 128GB Cream
O2 · White
Galaxy S23 128GB Cream
O2 · White
Mobile deal data is fetched live from our data platform each time you search or filter, so listings reflect the latest information networks have supplied. Prices and offers can change and may occasionally differ on the network's own website; the network's checkout price is the one that applies. Coverage and speeds vary by network and location, so check Ofcom's mobile coverage checker before you switch. We compare deals from a significant share of the UK market, but no comparison site covers every deal from every network. See how we compare for the networks we include and how results are ranked.
The Samsung Galaxy S23 launched in February 2023 and is still sold because it does what most people need for less. It pairs a compact 6.1-inch AMOLED screen with a 50MP main camera and 5G. Pay-monthly deals start from £15.00 a month, with every price-rise schedule shown in full.
Key takeaways
Key features
Two numbers decide the real cost: the monthly price and any upfront fee. A low monthly with a high upfront can cost more overall than a flat deal, so sort by effective monthly cost to compare like for like across the full contract. Pick a data allowance that matches how much you actually use rather than the biggest on offer, and choose a contract length you are happy to keep. If you already have a phone you like, a SIM-only plan is usually cheaper than a fresh contract.
The 6.1-inch AMOLED display is bright and sharp for video, games and everyday browsing, and the compact size suits one-handed use and smaller pockets. The 50MP main camera, part of a triple lens setup, takes strong photos in good light and holds up well after dark. The 12MP front camera is fine for video calls and selfies. As an older flagship, it cannot match the very latest models for low-light detail, but for everyday shots it still does the job well.
The Galaxy S23 handles daily apps, browsing and most games without fuss, though its older chip will feel a step behind the newest phones over time. The 3,900 mAh battery comfortably lasts a full day for most people, with lighter users stretching into a second day. At 168 g it is light and easy to carry. It shipped with Android 13, so check the current update support before you buy if long-term software matters to you.
The Galaxy S22 is the previous generation, so the S23 is the slightly newer and faster of the two. Both share the same compact, one-handed shape and a similar everyday feel, so the day-to-day experience is close. The decision usually comes down to price. Choose the S23 if the gap is small and you want the newer model, or the S22 if it works out meaningfully cheaper for what you need.
The Galaxy S23 comes with 128GB. That suits most people, with room for photos, apps and a few offline downloads. There is no memory card slot, so you cannot add space later. If you keep large video libraries or many games on the device, you may need to manage what you store, or pick a phone with a bigger base capacity from the start. Cloud backups can help free up room without losing your files.
Pros
Cons
Our verdict
The Galaxy S23 is a smart pick if you want a compact flagship for less and can live with an older chip and shorter update runway.
Select your ideal Samsung Galaxy S23 from trusted retailers. Filter by data, price and contract length to find your perfect match.
Keep your current number by texting 'PAC' to 65075. It's free and takes minutes.
Finish your application with your chosen retailer. Your new Samsung Galaxy S23 will be delivered and your number transferred automatically.
Every successful switch through Switchity plants 2 trees through our verified reforestation partner, Ecologi. Our switchers have already captured over 9,000 kg of CO₂ and released nearly 46,350 kg of oxygen annually.
Savings estimated from the typical bill our exit-fee calculator users report against comparable deals on our panel, per confirmed switch.
Pick your Samsung Galaxy S23 deal from the comparison above, or browse every mobile phone deal we cover.
See all mobile phone dealsEvery switch through Switchity supports reforestation and saves our community money on their broadband.
Savings are estimates: the typical bill our exit-fee calculator users report against comparable deals on our panel, applied per confirmed switch. Ofcom finds in-contract broadband customers pay £7 to £9 a month less than out-of-contract customers (February 2026).
