The HTC One M9 offers plenty of internal memory with 32GB built-in and room for microSD expansion up to an additional 2TB. Navigate using the internal GPS and GLONASS. The 2840 mAh battery powers the HTC One M9 for up to 402 hours standby. Multiple sensors including Bluetooth, Ambient light, and NFC enable Android apps to do more. HTC’s proprietary BoomSound™ uses official Dolby Audio™ to give users excellent sound quality on music, games, and movies. Take great pictures with the 20MP main camera or selfies on the UltraPixel front camera.