Want a better camera? A51 gives you quadruple lenses and 48MP for clearer and brighter pics even in night time Stay online all the time thanks to our long-lasting 4,000mAh battery See everything so much better on the incredible 6,5* infinity display in your grip thanks to less bezel design Stop worrying about running out of storage. A51 lets you expand by up to 512GB. Defend your most sensitive from malware and malicious threats. Multi-layered security within by Samsung Knox.
Actual battery life varies by network environment, features and apps used, frequency of calls and messages, number of times charged, and many other factors.