Giffgaff, SMARTY, Sky Mobile, iD Mobile, VOXI, Lebara — clearly explained.
A Mobile Virtual Network Operator (MVNO) sells plans using another operator's physical infrastructure — same towers, same coverage, often at lower cost.
Giffgaff: 30-day goodybags. EU free 38 destinations (5GB). No annual rises.
Sky Mobile: Data Piggybank rollover — now 12 months. EU daily charge.
Tesco Mobile: 5.7M customers. 5× Uswitch Best Service. Clubcard frozen prices.
SMARTY: Three-owned. 30-day only. Unused data credited back monthly. EU 42 destinations (12GB).
iD Mobile: 50 worldwide destinations (30GB). Data rollover. Fixed prices.
VOXI: Unlimited social media data. EU via Roaming Passport Plus.
Lebara: Free calls to 100+ countries. EU 30GB.