The Nokia N91 was introduced in 2005, Q2. All About Symbian reviews the Nokia N91 and writes about music “With just under 4GB to play with (roughly 1000 tracks at 4MB each), you can’t rely on scrolling up and down to find what you want. First of all you choose criteria to list the tracks (you can view by Album, Artist, Genre, Composer, or no filtering at all), and from there onto the separate tracks. It’s here that the keypad scores, as you can put in a search string like ‘MC Hammer’ and have it filtered as you type each character. Much easier than scrolling, and fast enough to not cause a problem, even when the hard drive is full. Is it better than the scroll wheel on an iPod? Let’s just say it’s comparable and both get the job done in roughly the same amount of time.”

CNET reviews the Nokia N91 and talks about design, “There are two things you’ll notice about the Nokia N91: it’s flashy and it’s big. À la the Nokia 8800, the all-silver N91 is certainly eye-catching, but at 4.4 by 2.2 by 0.9 inches and 5.8 ounces, the slider phone is on the larger and heftier side, making for a tight fit in a pants pocket. Even by the standards of music players, the Nokia N91 is still big and heavy. By comparison, the 4GB Cowon iAudio 6 measures 2.7 by 1.2 by 0.7 inches and 2.1 ounces. That said, the solidly constructed N91 is comfortable to hold in the hand… The Nokia N91 features a 2.2-inch-diagonal screen that shows off 262,000 colors, but it’s lower in resolution than the Nokia N80 (176×208 vs. 325×416 pixels), so text and images aren’t as sharp. Below the display are two customizable soft keys, the Talk and End buttons, and a five-way navigation toggle. In its closed state, the front cover also holds the music player controls: music access, play/pause, stop, next, and previous. Interestingly, there appears to be a select button in the middle of this control pad, but you can’t press it, and it doesn’t seem to serve a purpose.”

MobileBurn reviews the Nokia N91 and reports about physical aspects, “The 2-megapixel camera is located at the back of the phone. The battery cover is made of stainless steel, and it was secure with no noticeable gaps. Sliding open the N91, the blue backlit keypad seems tiny, like each key is a grain of rice. The Edit key is placed to the left of the numerical keys and the Clear key to the right. It took some time for me to get used to the keypad because of its size, but after awhile, typing an SMS did not seem as daunting. The raised profile of the keys helped in providing good feedback, and prevented wrong key presses. Overall, I would have preferred bigger keys, but the N91’s keypad works just fine with some getting used to”

GSMarena writes, “Everybody in our office was overwhelmed with joy. Nokia N91 has finally been launched. We first saw the N91 model approximately an year ago, but since then we would only hear “postponed”, “not yet”, “be patient and wait a little bit more” etc. And here it is - an attractive box in the courier’s hands, which made an entire year of waiting seem as if it had never happened.”

TrustedReviews.com writes about battery, “During the battery test I set the power save time out set to the maximum available which is 30 minutes, the light time out to the maximum available which is 60 seconds, the screen brightness to highest available and the music player volume at its highest. Playback was through the loudspeaker. The battery delivered a rather good eight hours and 12 minutes of music. Nokia suggests you should get ten hours of playback, and you should be able to achieve this or close to it by using different power save and light time out settings.”

3G reviews the Nokia N91 and writes about camera, “For a two-megapixel camera bereft of autofocus and a macro setting, the N91 does manage to deliver some nice shots. It’s not at the same level as its N90 team-mate, which has a Carl Zeiss lens, but the results are pleasing nonetheless. Its only failure for us was on close-ups, where the focus went awry. More impressive is the N91’s flair for video. You can shoot sixty minutes of footage in MP4 format at a resolution of 352×288 pixels, before storing it on your hard drive. The results were some of the best we’ve seen from a mobile phone, with smooth movement and little or no pixelation noise, while the sound capture was strong.”