The best way to choose your case size is to measure your tablet's height and width or look online here for your tablets dimensions. http://www.gsmarena.com
As a guideline we suggest any tablet or kindle below 21cm tall including it’s case will fit into a small size tablet SwimCell. Anything larger than that, up to 24cm and you will want our large case
Below we have listed some popular models and the size case we recommend for them. If in doubt, feel free to send us a message and we will help you choose.
Standard 14.5cm x 21cm
Kindle, Paper White, Vogage, Oasis, Fire, Fire HD8
Large 21cm x 24cm
iPad 9.7 pro, 1,2,3,5