Brand

Amazon Kindle Kobo Barnes & Noble Nook Boyue Other

Screen Size

Small (5" – 6") Standard (6" – 7") Large (7.8" – 10") Extra Large (> 10")

Resolution

167 PPI 212 PPI 227 PPI 300 PPI

Storage

4 GB 8 GB 16 GB 32 GB

Battery Life

Less than 2 weeks 2 – 4 weeks 4 – 6 weeks 6+ weeks

Connectivity

Wi-Fi 3G 4G Bluetooth

Built-in Lighting

Has Lighting No Lighting

Water Resistant

Water Resistant Not Resistant