Weighing just 3.3 ounces, the Mysto is light and compact. Sliding the screen upward reveals a well-spaced, comfortable numeric keypad. Like all Helio phones, the Mysto works over Sprint's voice network. Call quality was fine, but I ran into some audio dropouts in testing. The handset supports fast 3G networks, which is a big help when you are surfing or streaming video

Unfortunately, video looks awful. Even though I could watch an MPEG-4 version of Casino Royale in its native 320-by-240 resolution, it played at an unacceptable 2 frames per second.

The music player fared much better. It handled MP3 and unprotected AAC tracks at a wide variety of bit rates, although it couldn’t recognize some WMA files I tried. Using the included wired stereo earbuds-and-mic combo, I heard surprisingly detailed sound. Sadly, the 2-megapixel camera took blurry, washed-out, unusable photos.

It's a good choice for Helio fans who want a good-looking phone that doubles as an MP3 player, but the Mysto isn't enough to bring me over from another carrier.

Helio Mysto Review
Price range: $149
Check This Out:

Sony Ericsson Z555i Review: Stylish Clamshell

Samsung Watch Phone Review: The Mobile in Watch

LG KF600 Review: Interactive Navigation plus Creative Interface