Relying on a phone's personal hotspot to get a laptop or tablet online works fine occasionally, but it drains your phone's battery and eats into your handset's own data allowance. A dedicated Unlimited Data SIM for Tablet and Laptop on the Three Network, priced from £17.99, solves that by giving your device its own independent connection — no tethering, no shared allowance, and no separate contract tying you down for years.

Why a Dedicated Data SIM Beats Tethering from Your Phone

Tethering has three quiet costs: it shortens your phone's battery life, it counts against your phone plan's own data cap, and it stops working the moment your phone is switched off or out of signal. A SIM installed directly in a tablet or laptop with built-in SIM support removes all three problems. The device connects independently, keeps its own battery life intact, and doesn't compete with your phone for bandwidth.

What You Get with the Three Network Unlimited Data SIM

5G Speed Without a Fixed Broadband Line

This SIM runs on Three's 5G network, giving tablets and laptops with built-in cellular support a genuine broadband alternative for browsing, video calls, cloud file access and streaming. It's a practical option for anyone who splits time between locations and doesn't want to rely on whatever public Wi-Fi happens to be available.

Flexible Terms: 3, 12 or 24 Months

Rather than locking every customer into the same commitment, the plan is available across 3-month, 12-month and 24-month terms. Shorter terms suit students working across a single academic term or contractors on a fixed project, while the 24-month term brings the price down for anyone who knows they'll want the connection long-term.

Who This SIM Is Actually Built For