Got an 830 this weekend. For reference, I’ve had a Samsung Focus, and a Lumia 900, 920, and 1020.
This is probably the best thing about the 830. It’s slim and feels really solid and well constructed. The only downsides are that there’s a little give in the plastic backing near the camera hump and there’s some light bleed at the bottom edge of the screen.
Otherwise it’s really great, by far the nicest Windows Phone I’ve seen (but I’ve never seen the 925, 930, or HTC One). Very elegant.
I was worried about this, but it’s generally fine, as long as you aren’t expecting too much. It’s slightly faster at most things than the 920 and 1020, and when it’s not, it’s the same speed. If you’re looking for a significant upgrade to those phones, though, then the 830 isn’t for you.
Somehow, it’s much nicer than the 920, even though spec-wise they’re the same. Even on low/auto, it’s much brighter, whites are whiter, and it seems crisper, even though that’s probably impossible since it’s a bigger screen at the same resolution. I don’t have the 1020 with me right now, so i can’t say, but it seems better than that too.
Pretty good. It’s noticeably sharper than the 920 (no point comparing it to the 1020) and it performs much faster. The 5″ screen also makes a better viewfinder.
Low-light performance is okay. There is a lot of noise in low-light shots, and I think that there might be more than the 920. I’m no expert photographer, but it seems like for quick “pull out of your pocket” shots in low light, the 920 is better quality.
On the other hand, the shots in bright light are significantly sharper and just better balanced to my eye. As I said, I’m not an expert photographer, so I don’t know.
Overall, I would say it’s a good upgrade for people coming from a 520, 620, 720, or WP7 phone. I don’t think I’d recommend it as a phone you’re going to keep for 2 years if you’re coming from a 920 or something like that.