The 9320 has a 1450 mAh battery capacity, whereas the 9360 has 1000 mAh. Battery life also depends on how you manage your phone. (Examples - GPS/Bluetooth/WiFi off when not in use, display brightness at a reasonable percentage, closing applications when not in use, etc.)
as mentioned above, it varies between users. Everyone has different settings and usage patterns. For me i found battery life better on my 9360 compared to my 9900 despite the 9900 having bigger battery at 1230mah. So i would imagine the battery life on the 9320 to be even better with 1450mah, and lower res screen when compared to the 9360.
i agree with AH the battery in the 9360 compared to other OS 7 devices ive had is pretty bad but my 9360 can last as long as 1 1/2 days so for me thats amazing but then as AH was saying you have to think about the specific settings of ones mobile phone!
I've never seen an lag, freezing on my 9360. It runs remarkably well to be honest, even when compared to the 9900. I think heating only comes when you a lot of cellular data, like wifi-hotspot, web browsing for long periods of time. Even so, i would describe it as slightly warmer. Which is the same as any other phones. My Lumia 800 also heats up quite easily, in fact i would say much easier than the curve 9360. When i use the 9360 to track my run with Endomondo (GPS live tracking), music playing at the same time, while occasionally reply to text, sometimes even checking my twitter feeds, or tapatalk, over a period of an hour, i don't feel it get any warmer. If there are excessive heating, its probably a defect unit. I've had 3 different 9360 and non of them had those issues.
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