TechShout reviews the Nokia E90 Communicator and writes, "the device features one of the fastest RAM in a Nokia phone, 128 MB coupled with a faster processor. This enables the phone to work efficiently. You can run several applications in the background without making it slow or freeze. The Nokia E90 is the first communicator to run on a single platform. It has S60 3.1 platform running on Symbian OS 9.2, which allows you to continue with the same action even when you flip screens."

MobileTechReview reviews the Nokia E90 Communicator and writes, "The Nokia E90's 3.2 megapixel camera is impressive, both for still photos and video. Video quality rivals the excellent N95 mobile phone and like the N95 it can shoot at VGA resolution at 30fps. Still image quality isn't quite as good as the 3MP autofocus Nokia N73 mobile phone (one of the best), nor can it beat the 5MP N95 mobile phone or Sony Ericsson's top CyberShot phones such as the 800i, but it's better than most camera phones on the market. The autofocus lens is sometimes a little balky to focus but generally it's not too slow by autofocus camera phone standards, and it manages to create good depth in images. ... the E90 overall has just a bit too much sharpening and pleasing smoothing. Color balance is often spot-on, as with the image on the right, but there are times when color shift blue, especially indoors even under incandescent lighting. Overall, contrast is a little too high which can make the photo look slightly dark (see the pool photo below), but we're being picky here. Compared to most camera phones, the photos are fantastic. Unfortunately, indoor shots in poorly lit locations are Nokia's weak point and the E90 is no exception. Even the fairly bright LED flash doesn't help if the subject is more than 4 feet away." More