Look at the list of new M8 features and they're mostly variations on a theme we've seen already with the camera, sound, Blinkfeed, etc.," said Ramon Llamas, an analyst at research firm IDC. "Although I like the battery improvement of 40%, I'm still curious to see how it fares in real world situations." HTC said the phone will offer talk time of 20 hours on a charge, and 496 hours on standby on 3G networks.