The VGA camera takes pictures in four resolutions, from 640x480 pixels down to 160x120 pixels. You also get adjustable brightness and contrast levels, a digital zoom, two color effects, three image-quality settings, a self-timer, five white-balance settings, and two shutter sounds, plus a silent option. Photo quality is about what you'd expect from a VGA camera. Colors were muted and images had a lot of noise. On the upside, the C78 offers a respectable 60MB of user-accessible memory.
You can personalize the C78 with a banner and your choice of wallpaper and ringtones. More options, and additional ringtones, are available from MetroPCS's MetroWEB service. The C78 comes with one Sudoku game, but you can always buy more titles.
Performance
We tested the dual-band (CDMA 800/1900) ZTE C78 in San Francisco using MetroPCS service. Call quality was decent overall, with a clear signal and little static and interference. Voices sounded a tad robotic, but it wasn't too bothersome. On the other hand, the volume was too low; we had trouble hearing in noisy situations.
On their end, callers said we sounded fine for the most part. They could tell we were using a cell phone, but they didn't notice the robotic effect that we heard. Yet, they also reported a low volume and a couple of our friends said that the C78 picked up a lot of background noise. Speakerphone calls were fine: audio quality was a bit muffled, but the volume level was loud.
The C78 has a rated battery life of 3.7 hours talk time and 7.5 days standby time. It has a decent tested talk time of 5 hours and 56 minutes. According to FCC radiation tests the C78 has a digital SAR of 0.994 watt per kilogram.
What You'll Pay
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