Battery life on the Sony Ericsson Vivaz Pro is pretty good, especially when you consider the phone only has a 1200mAh battery.
However, we'd put this down to the fact we're so annoyed by most of the functions on the phone that it doesn't make us want to play with it all the time.
If you don't have push email enabled and don't leave Wi-Fi running all the time you can easily get two days' use out of the Vivaz Pro.
However, internet browsing seems to suck it down badly, and while it's good that you don't need to carry a charger with you at all times (and you can swap out the battery) we would have liked to see a little more juice in there to make this into a real long-running beast.
The Sony Ericsson Vivaz Pro supports all types of connection, and threw in a couple of nice surprises for us as well.
The main one being Wi-Fi – for once on a Symbian phone it constantly sniffed for the networks you need when you go back into your home networks – no need to tell it to connect all the time.
This is a real plus given the amount of data the Vivaz Pro sucks down, and means browsing gets a lot (and noticeably) speedier.
The Bluetooth is also good as well – we used a Jabra Clipper headset to connect up and it worked each time, finding the unit whenever Bluetooth was activated and in range.
HSPDA was fast enough, although not quick enough to keep up with the thirsty internet browser, although it can buzz up to 10.2Mbps.
However, 3G connection struggled at times, and constantly kept having to ask which method of connecting you preferred. The one we had already said 17 times should have been a clue but clearly wasn't.
Also aGPS is on board as well, which is supposed to work well with both the mapping applications.
While it connected up OK to WisePilot, it struggled horrendously to find us when using Google Maps – not only would the map not download, but the blue dot kept jumping all over the place – which is useless when you're lost.