Pros -Small (feels lighter than my old T-Mobile BB Curve, forget it's in my pocket)
-Responsive (screen touch is really responsive)
-Good sound: calls, mp3/ fm radio (standard headphone jack)
-WiFi (simple set-up and T-Mobile doesn't count as data usage)
Cons -Typing can be difficult because it's small (trade-off though, love that it's so small and Swype or alternate app store keyboards download help off-set this issue)
-Big middle button (not sure what it's purpose-but other buttons are useful e.g. home)
Summary The phone is a good value but does not look or feel like a budget phone. Surely other Android phones have more to offer, but it delivers for the money: compact size, nice screen, good performance on the application side, and the calls have been very clear so far (and no dropped calls).
For $200 without plan it's a great value (T-Mobile offers prepaid plans with 1500 mins and 30 MG of data for a month not including WiFi usage: http://www.t-mobile.com/shop/plans/prepaid-plans.aspx?WT.mc_n=Prepaid_SeePlan&WT.mc_t=OnsiteAd). No, I?m not getting paid by T-Mobile...but I should. :) Overall very satisfied so far and happy not be paying $60+ a month for less minutes and an unlimited data plan that I don?t need with the use of WiFi.
"Not that Great"on by Nikhil896
Pros The phone is very portable. Capacitive touch screen is a pro.
Cons The phone overall is laggy once you get over 5 apps and there is no multitouch support. The screen is very small too.
Summary Overall, I don't like my experience with the Tmobile Comet. Internet is very slow compared to other low-end smart phones and is very laggy after you download a few apps.
Pros ECONOMICAL , EASY TO USE , MODERN ,
Cons SLUGGISH, AFTER 3 MONTHS ITS FREEZING A LOT , CANT DOWNLOAD MEDIA ( PICS ETC) IT SUT OFF BY ITSELF , SCREEN TURNS GRAY ,
"Great little phone!"on by Phwoosh
Pros Great call quality
Clear, responsive touch screen
Cons Short battery life
Not much in the way of customization
Summary I got this phone in June of '11 and haven't had a single problem with it. I make calls, email, text, take pictures, and listen to a ton of Pandora Radio on the thing. My only huge complaint is that sometimes I have to charge it every night and sometimes I don't have to charge it for two or three days. The operating system is easy to figure out and the phone itself is small enough to fit in just about any pocket. The T-Mobile Comet is also surprisingly durable. Mine has survived countless drops from countertops, car seats, and clumsy fingers without a scratch to be seen. Overall, I would recommend this phone to anyone in the market for a smart phone for the first time.
Pros Good call clarity...when it doesn't say "Emergency Calls Only." Responsive screen (for the first couple of weeks)
Cons I'm on my 4th Comet in 6 months...2 were failures right out of the box. "Emergency Calls Only" is a common issue (SIM works fine in other phones). Charging issues and software issues within days make this phone a poor value, even when free.
Summary I've now had four of these little mysteries. The first one lasted almost three months, the second only 3 weeks, and the last two were problems right out of the box. T-Mobile's solution? "We can exchange it for another one." All for had one problem in common...even though I live in an area serviced by T-Mobile 3G, my phone says "Emergency Calls Only" a lot. If I put the SIM card in other (albeit much older non-Android) devices, it works fine.
Despite four out of four of these devices being failures, any kind of upgrade "is not possible" without paying full price. Replacing the device with a known working device is also apparently not possible.
In short, this particular phone with all of its issues, was nothing more than a useless gimmick to get people hooked into a contract. A contract, that for nearly $100 a month, is useless without a working device.
Scam? You decide.