Buyers Guides

WhatSIM Blog and Buyers Guides

WhatSIM is here to help you navigate the complicated world of Mobile phones and SIM contracts. Check out the latest technology news and how to guides for all the UK mobile networks and phones from leading brands like Apple, Samsung, Huawei & Oneplus.

Out top SIM Only contracts help you save money and get connected quickly and easily. We search the entire market to help you find the best value SIMO deals.

How to unlock your phone

How to unlock your mobile phone

Unlocking your mobile phone When you buy a phone there is a good chance it will be locked to the network provider you purchased it from. This is done to stop you from switching networks easily. ...
which sim card do I need?

Which SIM card do I need?

SIM cards come in three sizes - here is a quick guide on how to tell the difference and what to look out for.
Choosing the right SIM Only Deal

Choosing the right SIM only deal for you

If you are new to SIM-only, or you want to make sure you get the best deal for you, then we’re here to help you navigate step by step all of the big decisions you face when choosing your SIM-only ...
sms messages

Are sneaky text messages costing you more?

Most of us have at some point or another experienced bill shock, and MMS, or picture messages are a common reason. When you add emoticons, little smiley faces and the like to your text messages they ...

When will I get 5G?

The 5G rollout started in late 2019 and is already bringing faster connection speeds to thousands of happy phone users across the UK but if it's not yet available where you are you'd would be ...
Tethering your phone

Tethering: which mobile network is best?

What is mobile tethering?Tethering allows you to use your phone as a portable WiFi hotspot by connecting your mobile phone to another device, such as a laptop or tablet. This can be especially useful ...
The definitive Guide to SIM Only

The Definitive Guide to SIM Only

What is a SIM-only contract? SIM-only contracts work in the same way as traditional mobile phone contracts except for one distinct factor; you provide the mobile phone. This means all you pay for is ...
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