Charzon La Vida Pocket Power Compact 2800 mAh for most smartphones, including iPhones 6, 6s plus , 5, 5s, 4s (SILVER) Compatible with All iPhones and Android phones Elegant design and packaging , great for gifts Includes flat cable with micro USb tip and iphone 4s tips Addtional 12 hours of talk time on most smartphones Extra 75% to 100% of juice for iPhones 6, 4, 5s, Blackberry, & 50-60% for Samsung Galaxy S3-S4