Mobile Upgrades: When & How to Upgrade
Everything you need to know about upgrading your phone and understanding mobile contracts. Find out when you can upgrade and how to get the best deal.
When Can You Upgrade?
Your upgrade eligibility depends on your contract type and how much time is left. Here's a general guide:
Pro tip: We've found that checking your upgrade date in your network's app is the fastest method - it usually takes less than 30 seconds.
- End of contract: You can upgrade for free once your minimum term ends (usually 24 months)
- Early upgrade (3-6 months before): Most networks allow upgrades a few months early
- Mid-contract upgrade: Possible but you'll need to pay off remaining device costs
- SIM-only contract: Usually 30-day rolling, so you can change anytime with notice
How to Check Your Upgrade Date
- O2: Check in My O2 app or online account
- EE: View in My EE app or text UPGRADE to 150
- Vodafone: Check My Vodafone app or online
- Three: Log into My3 account or app
Understanding Contract Types
Phone Contract
Phone + airtime bundled together in one monthly payment.
- Usually 24-36 months
- Higher monthly cost
- Phone included upfront
- Can't easily switch networks
Split Contract
Separate device payment and airtime plan (e.g., O2 Refresh).
- Pay off phone separately
- More flexibility
- Can upgrade by settling device
- Better value long-term
SIM Only
Just airtime - you provide your own phone.
- 30-day or 12-month options
- Cheapest monthly cost
- Maximum flexibility
- Buy phone outright separately
Pay As You Go
Top up credit as needed - no contract.
- No credit check required
- Full flexibility
- Can be more expensive per use
- Good for light users
Early Upgrade Options
Upgrading Before Your Contract Ends
If you want a new phone before your contract ends, you have several options:
-
Pay off remaining device cost
With split contracts like O2 Refresh, you can pay off your phone balance and upgrade immediately.
-
Trade in your current phone
Many networks accept trade-ins to offset upgrade costs or pay off your device.
-
Early upgrade programme
Some networks offer early upgrade schemes (e.g., EE Swap) where you can upgrade mid-contract.
-
Sell privately and pay off contract
Sell your phone yourself and use the money to settle your device plan.
Calculate Your Early Upgrade Cost
To find out how much an early upgrade will cost, check your remaining device payments in your network's app. This shows exactly how much you need to pay to clear your device plan and upgrade. Remember to factor in any trade-in value for your current phone.
Tips for Getting the Best Deal
-
Compare total cost over the contract
Calculate the total cost (upfront + monthly x months) rather than just looking at monthly price.
-
Consider SIM-only + buying outright
Often cheaper overall than a phone contract, especially for older models or refurbished phones.
-
Negotiate with your current network
Call retentions and ask for a better deal - they often have unadvertised offers to keep you.
-
Check cashback sites
Websites like TopCashback and Quidco offer cashback on phone contracts.
-
Look at refurbished phones
Certified refurbished phones offer significant savings with warranty included.
-
Time your upgrade well
Black Friday, Boxing Day, and new phone launches often bring the best deals.
Ready to Upgrade?
Check our network-specific guides for detailed upgrade information and current deals.
When Is the Best Time to Upgrade?
Timing your upgrade correctly can save you hundreds of pounds over the life of your next contract. The single most important rule is to never let your contract roll on month-to-month once the minimum term ends. After the initial 24- or 36-month period, you continue paying the same monthly amount even though the handset portion of the deal has already been paid off. According to Ofcom data, millions of UK customers overpay each year simply because they forget to upgrade or switch to a SIM-only plan when their contract expires.
End-of-Contract Timing
Since 2020, UK networks have been required by Ofcom to send end-of-contract notifications. You will receive a text or email telling you when your minimum term ends and what you are currently paying compared to what you could pay on a SIM-only deal. This is the ideal moment to start researching your next move. Set a calendar reminder for two weeks before your contract end date so you have time to compare prices without feeling rushed.
Seasonal Deals and Sales Events
Certain times of the year consistently deliver the best mobile deals. Black Friday (late November) is now one of the biggest sales events for phone contracts in the UK, with networks and retailers competing aggressively on flagship handsets. January sales also produce excellent offers as networks clear stock ahead of spring product launches. Another key window is the weeks immediately after a new flagship phone launch: when Apple releases a new iPhone or Samsung unveils a new Galaxy S model, the previous generation drops significantly in price. If you do not need the absolute latest handset, waiting for these post-launch discounts is one of the smartest moves you can make.
New Phone Launch Windows
Apple typically launches new iPhones in September, while Samsung reveals Galaxy S models in January or February and Galaxy Z foldables in the summer. Google Pixel phones arrive around October. If you want the newest device, pre-order deals sometimes include bonus trade-in credit, free accessories, or extra data. However, prices tend to stabilise or drop within eight to twelve weeks of launch, so patience often pays off. Keep an eye on comparison sites during these windows to find the sweet spot between launch excitement and genuine value.
Understanding Your Upgrade Options
When your upgrade window opens, you are not limited to simply renewing with the same network on the same type of plan. Understanding all of your options ensures you pick the path that delivers the best value for your circumstances.
Like-for-Like Upgrade
The simplest route is to upgrade with your current network. You choose a new handset and a new plan, and the transition is seamless because you keep your existing number with no porting required. Networks often offer loyalty incentives such as extra data or a reduced monthly cost. Before accepting the first offer, always check what is available from competing networks so you have a benchmark for negotiation.
Early Upgrade Fees
If you want to upgrade before your contract ends, most networks will ask you to pay off the remaining balance on your device plan. On a split contract such as O2 Refresh, this means settling the outstanding device payments while your airtime plan continues or is replaced. Some networks, like EE with its Swap programme, allow you to return your current handset in good condition and start a new contract, though you may lose equity in the device. Always request an exact early-upgrade quote before committing, and compare it against simply waiting until the end of your term.
Switching to SIM-Only
If your current phone still works well, moving to a SIM-only plan is often the most cost-effective choice. Monthly SIM-only prices start from as little as five to six pounds for generous data packages on MVNOs like Smarty, iD Mobile, or Lebara. Even the major networks offer competitive 30-day rolling SIM-only deals. This approach frees you from long-term commitments and lets you upgrade your handset whenever you choose, rather than being locked into a fixed cycle.
Trade-In Programmes
All four major UK networks run trade-in programmes that let you exchange your old handset for credit towards a new device or a reduction on your monthly bill. Third-party services such as musicMagpie, Mazuma Mobile, and Envirofone often offer higher trade-in values. Before handing over your phone, always compare the network trade-in quote with at least two independent recycling services. Remember to factory-reset your device, remove your SIM and memory card, and disable Find My iPhone or Google Find My Device before trading in.
Expert Tips for Getting the Best Deal
SIM-Only Plus Buying Outright vs Phone Contract
One of the most important calculations any mobile customer can make is comparing the total cost of a phone contract against buying the handset outright and pairing it with a cheap SIM-only deal. For example, a 24-month contract for a mid-range phone might cost thirty-five pounds per month, totalling eight hundred and forty pounds. The same phone purchased outright might cost four hundred pounds, and a SIM-only plan with equivalent data could be ten pounds per month, totalling six hundred and forty pounds over two years. That is a saving of two hundred pounds. This gap is even wider with refurbished handsets, which can cut the upfront cost by thirty to fifty per cent while offering a twelve-month warranty.
Using Cashback Sites
Cashback websites such as TopCashback and Quidco regularly offer cashback on mobile phone contracts purchased through their tracked links. The cashback can range from twenty pounds on a SIM-only deal to over one hundred pounds on a premium handset contract. Some specialist mobile comparison sites also offer their own cashback or voucher incentives. Always check whether the cashback is automatic or requires a claim, and be aware that cashback is usually paid several months after the purchase. Factor this delayed saving into your overall cost comparison.
Checking Total Cost of Ownership
Never judge a deal by its monthly price alone. The total cost of ownership includes the upfront payment, every monthly instalment over the full contract term, and any add-ons or insurance you may take out. Use a simple formula: (upfront cost) + (monthly cost x number of months) + (extras). Compare this total across at least three deals before signing up. Do not forget to subtract any trade-in credit or cashback you expect to receive. Many comparison sites now show the total cost automatically, making it easier than ever to compare like for like. Additionally, consider the residual value of the phone at the end of the contract: flagship devices from Apple and Samsung tend to hold their value better than budget models, which affects the true cost of ownership.
Frequently Asked Questions
Can I upgrade my phone before my contract ends?
What happens if I do nothing when my contract ends?
Is it cheaper to buy a phone outright and get a SIM-only deal?
How do I keep my phone number when upgrading to a different network?
Written by the AtlasMobile Team
Independent UK Mobile & Broadband Experts
Our editorial team combines over 25 years of experience in UK telecommunications. We research, test, and verify all information to provide accurate, unbiased guidance for consumers.
Last reviewed: January 2026