My wife and I upgraded over the summer, I got a Samsung Stratosphere and she got the Lucid. The battery life is horrible on the Lucid, even with GPS and Bluetooth turned off. I'd say a full charge last about 10 hours. I've looked into extended life batteries, they are around $50 but haven't tried one yet. I got the Stratosphere for the slide out key board, thinking I wouldn't like the touch screen for texting but never use it. My phone is thick because of the sliding keyboard and heavier than hers but the battery life is great, IMO. A full charge usually last 2 days but I just text and use the web for surfing, rarely do I talk on a phone and never stream music or video except for the occasional YouTube vid. When we got ours, we got a much better deal at Wal-Mart than the Verizon store or Verizon.com. The phones were the same price at Wal-Mart and Verizon.com but we got Wal-Mart Gift cards for more than the price of the phones.