Christmas SIM only offers
Browse the latest Christmas SIM-only offers and seasonal discounts from UK networks — a flexible gift idea for anyone needing a new plan.
When is the best time to grab a Christmas SIM only deal?
The strongest festive SIM only offers usually start appearing during the Black Friday and Cyber Monday week in late November and continue through to the January sales.
Because most SIM only plans run on a 30-day or 12-month basis, there's little downside to switching the moment a good seasonal price lands — you're not locking yourself into an expensive handset contract.
Are Christmas SIM only deals genuinely cheaper or just marketing?
Many seasonal offers are real, with networks cutting monthly prices or boosting data allowances over the festive period to win new customers.
Always compare the headline price against the network's standard tariff, and check whether the discount lasts the full contract or only applies for a few introductory months before reverting to a higher rate.
Basics SIM Only - 12 months
- Price becomes £13.50 on 1 April 2027
goodybag 15GB - 0 months
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Three 1GB 6pm 24m SIM Only
Voxi VOXI 12 1m SIMO
Unlimited Calls and Texts 50GB - 12 months
Grade Mobile 100GB 12-month SIM
Standard 30 day SIMO - 1 month
All In One 10
5G SIM Only 60GB - 24 months
- Each April iD monthly prices rise by £1.50.
Talkmobile 110GB 1 month SIM
Mozillion Mozillion 1GB 12-month SIM
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