With moderate use you will easily get a full working day out of the Lumia, especially as the Battery Saver feature can be turned on at any time to conserve juice.
These battery figures put the Lumia in the same league as Samsung's Galaxy S II. With Apple's IOS 5 battery bug running amok, the Iphone 4S ran out of juice before the Lumia 800, but that might change when Apple issues a fix.
The Lumia 800 will be available for free from around £26 per month on a 24-month contract when it arrives on 16 November. SIM-free devices are expected to cost around £470. This makes it more expensive than a SIM-free Samsung Galaxy S II, which can be picked up for just over £400, but the Lumia is cheaper than the Iphone 4S, which starts at £499.
The comeback is on
Does Nokia stick it to Apple and Samsung? If you're going to use apps and the camera on a daily basis the Iphone 4S is the better choice even though it locks you into Apple's ecosystem.
The Galaxy S II has the most customisable interface thanks to Android and is the only one of the three capable of playing Flash-based video content, although with Adobe about to scrap mobile support for the mobile Flash software this might not be a unique selling point much longer.
The Lumia is definitely worth your attention if you're a business user. It will cater to enterprise email, social networking, music and travelling needs just as well if not better than the IOS and Android devices. The excellent build quality, great screen size and unique apps make it a better bet for business users than the Windows Phone Mango HTC Titan.
Nokia's comeback is off to a good start with the Lumia 800. The high-end specifications and unique services help to make it the best Windows Phone handset available and a worthy alternative to Apple and Samsung devices.
Beautiful design, Amoled screen, free Nokia music and navigation apps, reasonable battery life.
No micro-SD card slot, disappointing camera.
No Adobe Flash support.