Compared to 5 tablets with largest battery life

HP Slate 7 HD 4G7.0HP Slate 7 HD 4G tablet autonomy comparison
Dell Venue 77.0Dell Venue 7 tablet autonomy comparison
Dell Venue 87.0Dell Venue 8 tablet autonomy comparison
Lenovo ThinkPad 87.0Lenovo ThinkPad 8 tablet autonomy comparison
Microsoft Surface Pro 27.0Microsoft Surface Pro 2 tablet autonomy comparison