Can turn off the focus assist light in camera setting.

It quite useful for taking picture of the object that will glow in dark.

my small review after 2 days of usage.

Pros:
- build quality is nice for its price, much much better than lumia 710.
- loud speaker is very loud.
- camera light focus assist is awesome.
- nokia drive for free navigation.
- whatsapp performance is great, compared to wp7, need around 1 sec or less to start the app.
- lcd is nice, color is vibrant, viewing angle is nice but the color run when view from side. better than lumia 710 a lot.
- smooth like all others wp
- IE is fast
- nice notification in lockscreen
- sd card slot
- case is changeable, and case is thick, might good for drop protection.
- wifi and cell signal(call and 3G) are very good!
- Facebook album photo load very fast.

Cons:
- camera is so so only.
- Nokia drive not as good as google maps when come to navigation and traffic info.
- lack of ringer feature. you can only have combination of ring+vibrate -> vibrate or ring + no vibrate -> no vibrate. i usually want ring + no vibrate -> vibrate when silent.
- can't change sms tone to custom tone.
- a little thick at 11mm.
- No official google apps and facebook apps, and no dropbox

I try not to include those feature that are standard for WP8, this pros and cons are for lumia 620 itself.

No battery review as i just use it for 2 days. So far the battery performance is on par with galaxy nexus that i use previously. The battery is quite small at 1300mah, but it paired with latest S4 procrossor and Adreno 305 which is less power consuming than older Adreno 225 GPU.

For this price point, the cons are actually bearable, because you wont get a better phone with this performance at this price.

For example, an Android phone at this price wont run those google apps or facebook apps at best experience, but i believe if those apps come to wp in future, it will run alot better than the android phone at this price range.

*anyone interested to buy my unit (black) can PM me, selling at RM699, Zitron set.

ringtone can, and its more easier now on wp8, just drag and drop like pendrive using computer.
the facebook apps is by microsoft not facebook, and no fb messenger apps etc.

i feel that one is quite bettery consuming, because it also turn on the WLM chat, i use tat before on wp7.5 with alot of incoming message from WLM, at the end have to run it off, but now less ppl using WLM already, maybe i will give it a try.