As with all Windows Phones, there is no way of expanding the memory, such as with a microSD card, and with only 8GB of storage on board (only 6.28GB of which is accessible) this could be a problem for those looking to use the phone as their main MP3 player, not to mention if you want to cram it full of apps, movies and photos. You do get 25GB of cloud storage with SkyDrive though.
Overall the phone feels really nice in the hand, with the matt back making it feel a lot more premium that it initially looks. It’s slightly bigger than the 800 with a footprint of 119 x 62.4 and a thickness of 12.5mm, which is considerably more than phones like the Motorola Droid Razr and the iPhone 4S, but thanks to the tapered edges, you don’t notice the extra bulk.
Also helping this is the lightness of the phone, weighing just 126g compared to 142g of the 800 and 137g of the iPhone. Unfortunately the ugly physical buttons and bevelled screen edge detract from what is otherwise a perfectly nice phone.
Looking at the screen, Nokia has decided to use the less expensive and more battery intensive TFT LCD screen technology most commonly seen on mid-to-low range handsets. However one advantage the Nokia 710 has over these other devices is the addition of Nokia’s own ClearBlack technology. ClearBlack is a proprietary technology from Nokia which aims to ensure that the blacks you see really are black, helping the contrast of the screen. ClearBlack also aims to reduce reflections, help viewing angles and improve outdoor use.
And it seems to work. While the screen on the 710 is no where near as vibrant as the AMOLED screen seen on the 800 (as you would expect), it is a step up from run-of-the-mill TFT screens we’ve seen on the likes of the ZTE Tania.
Viewing angles are not flawless by any means and you do get something of a blue tinge when not looking directly at the screen, however they are better than normal and since for the most part you’ll be looking directly at your phone anyway, we don't see it as much of a problem. Also the colour temperature of the handset is relatively balanced with colours not getting over saturated as they tend to in AMOLED displays.
The Windows Phone 7 interface, especially when using the black background, helps the look with the large blocks of colour on the Live Tiles looking bright, though not particularly vibrant. Annoyingly, brightness settings are limited to low, medium and high and when the auto setting is on, it can lead to the phone’s brightness not really suiting the conditions.
The TFT LCD is very clear when viewing webpages with text appearing sharp even when zoomed right in. Despite having the same low resolution of 480 x 800 as the Lumia 800, it doesn’t suffer from the issues related to the PenTile RGBG subpixel matrix of that screen, which makes text appear grainy - especially in non-mobile optimised sites.