The Nokia 7510 is a mid-range flip to be released with T-Mobile USA. It is designed as a fashionable Series 40 device with its interchangeable faceplates (few colors included in the sales package) and extremely shinny keypad. The keys were somewhat hard to press and do not offer a lot not a lot of travel. Because they were so shinny, it was sometimes hard to read the numbers and letters imprinted on them. Another flaw that we noticed were the scratches on the back silver panel which we noticed on all three units we tested on the show flow. Those units otherwise looked very new.
The opening of the flip can be either done manually, or through a button located on the side. It worked well sometimes, while a few times it needed a lot harder push on the button to open the flip.
The main display was nice with good contrast and brightness and a monochrome external one.