Well-designed and reliable, the T-Mobile Sonic 4G Mobile HotSpot makes a very good travel companion.
T-Mobile - $99.99
CNET editors choose the best 802.11ac networking devices, including wireless routers.
For mobile users who want a fast and flexible mobile Internet access solution and who have moderate data usage needs, the T-Mobile 4G Mobile Hotspot ZTE MF61 will make a good investment.
The T-Mobile Sidekick 4G continues the Sidekick's legacy as an excellent messaging device and also serves as a great entry-level smartphone.
Though video chat isn't ready for prime time, there's plenty to love about the T-Mobile MyTouch 4G, including its speed, sleek and sturdy design, and great call quality.
The combination of a beautiful design, Windows Phone, and an affordable price tag makes the HTC Radar 4G a great smartphone for first-time buyers and those who don't need all the bells and whistles.
Huawei's T-Mobile MyTouch is ideal for first-time smartphone users who want 4G speeds and decent specs, but be aware that you'll be buying into an antiquated OS.
The T-Mobile MyTouch 4G Slide is a well-designed, feature-packed dual-core handset that can stand alongside today's premium smartphones.
Those looking for a QWERTY smartphone will gravitate to the thick and hearty Samsung Galaxy S Relay 4G, which has Android 4.0, strong hardware specs, and excellent call quality.
Its excellent design and user experience, coupled with its solid performance, make the HTC Sensation 4G one of the best Android phones yet and a top pick for T-Mobile customers.
Though the ZTE ZMax has some design flaws, they're minor enough to overlook if you want an incredibly inexpensive phablet off-contract.