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Fuse vs Tesco Mobile

Fuse Mobile and Tesco Mobile are both eSIM options in the UK. Tesco Mobile is an O2 MVNO with 12- and 24-month SIM-only contracts and Clubcard integration. Fuse is a UK multi-network data-only eSIM that uses all four UK networks. Here's the comparison — all Tesco Mobile facts verified from tescomobile.com on 4 June 2026.

Product

FuseUK multi-network data-only eSIM
Tesco MobileUK mobile service on O2 (MVNO)

UK networks

FuseAll 4 (EE, Vodafone, Three, O2)
Tesco MobileO2 only

Multi-network switching

Fuse
Tesco Mobile

Data — apps you can use

FuseAny app, any service. Standard unrestricted data.
Tesco MobileAny app, any service. Standard unrestricted data.

Banking, social, streaming, VPN, gaming

Fuse
Tesco Mobile

Starting price

FuseFrom £5.99/mo for 5GB
Tesco MobileFrom £9/mo Clubcard / £10/mo standard (12GB, 24-month)

International roaming

Fuse130+ countries on Pulse and Surge
Tesco MobileHome from Home: 48 destinations, no daily fee, no cap

eSIM

Fuse
Tesco Mobile

Contract

FuseMonthly rolling, cancel any time
Tesco Mobile12 or 24 month SIM-only

Tesco Mobile data in the table above was verified from Tesco Mobile's own published pages on 4 June 2026. Pricing and promotional terms change frequently — please re-check Tesco Mobile's website for current details before deciding.

Sources: SIM-only deals·Why Tesco Mobile (O2 network)·Home from Home (roaming)·eSIM support

Why Fuse

What Fuse offers.

All 4 UK networks vs one

Fuse data uses all four UK networks (EE, Vodafone, Three, O2) automatically. Tesco Mobile is an O2 MVNO — your coverage depends entirely on O2 wherever you are.

Strongest signal wins

Fuse scans all four networks continuously and moves to whichever is strongest in under a second. Tesco stays on O2 — if O2 is weak in your area, your data stays weak.

Monthly rolling, no 24-month lock-in

Fuse is monthly rolling — cancel any time, no exit fees. Tesco Mobile's SIM-only contracts run 12 or 24 months. Clubcard Prices are frozen for the term — but you're still locked in.

Wider roaming reach

Fuse Pulse and Surge plans include data in 130+ countries. Tesco's Home from Home covers 48 destinations (no daily fee, no cap, which is solid in-Europe) but Fuse reaches a much wider list.

Fuse is a UK multi-network data-only eSIM — one digital SIM that uses all four UK networks (EE, Three, Vodafone, O2) and switches automatically to whichever has the strongest signal. Fuse does not issue a phone number; Tesco Mobile does. Most customers keep Tesco Mobile for calls and SMS on their existing number, and add Fuse alongside via dual-SIM to handle data.
Yes. Every eSIM-capable phone (most flagships from 2018 onwards) supports dual-SIM — one physical SIM and one eSIM, or two eSIMs. Keep Tesco Mobile for calls and SMS, install Fuse as a second eSIM for data. Both lines work at the same time.
No. Fuse is data-only — there is no number, no carrier voice calls, no SMS. Apps like WhatsApp, FaceTime, iMessage and Signal work normally over the Fuse data line. Your existing Tesco Mobile number stays where it is.
No — Fuse is rolling monthly. Cancel or change plan any month with no exit fees. Plans start at £5.99/month for Spark (5GB), £9.99 for Pulse (10GB plus roaming in 130+ countries), and £14.99 for Surge (15GB plus roaming).

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