Best SIM-Only Plans 2025: Giffgaff vs ASDA Mobile for Flexibility & Savings!

Описание: Want a phone plan with ultimate flexibility or grocery-linked savings? 📱 Giffgaff’s plans start at $6 for 2GB to $35 for unlimited on O2’s 99% UK network, with 30-day “goodybags” or 18-month contracts, free EU roaming up to 5GB, and eSIM support—perfect for data-heavy users! Or pick ASDA Mobile’s prepaid deals from $5 for 3GB to $30 for unlimited (150Mbps cap) on Vodafone’s 5G, with 99% coverage, data rollover, and Asda Rewards cashback. Compare perks to find your ideal plan!