1 - Plan Description
2 - Feature Phones
3 - Smartphones
The prepaid plan now offers only one feature phone, the Alcatel ALC 4044W Flip BLU Kit, however you may be able to use a relatively recent compatible flip phone that you find on Amazon, eBay, etc.
The ALC 4044W is priced at 89.99 which is pretty high for a flip phone. I guess they know that you really don't want a smart phone and willing to pay at least that amount. You can get it for $75 if you sign up for a $50 plan. Most people who want this phone are more likely to opt for the $3 plan than the $50 plan.
This kit may not include the SIM card which would cost you an additional $10.
Two of the online ALC 4044w reviews claims this is a 4G LTE phone, but the listed specs say that it is a 3G phone, so I don't know what they're talking about.
It does have a basic web browser. It does support checking email via POP3 or IMAP4 protocols. It also does have a 2MP camera.
The Samsung T199 lets you make calls, send texts and, despite its two-inch screen, surf the web at 3G speeds. Battery life is not bad. You get 4 hours or talk time or about 9 days of standby on a single charge.
The phone also has a multimedia player so you can listen to music, view photos and even small videos. You can't do as much of this as you would like because there is no external storage capability. So you have to live with whatever internal memory is made available.
LG 450 - Flip Phone
The LG 450 is a flip phone that looks very similar to the 440g that is available from Tracfone. Like that phone, it has a couple of interesting features such as text -to-speech (in English and Spanish pronunciations).
Other features include a 1.3 MP camera and Bluetooth connectivity. The listed price is a bit higher, but there is a slight advantage with being directly on a major carrier's network rather than through a third party - mainly you can complain directly about things like your voicemail and coverage, though one hopes you don't have to do that.
The Sparq II is a QWERTY slider phone that has some advanced features, but not enough to call it a smartphone. In addition to its keypad, it features a 1.3 MP camera with flash. You can both text and do email.
It is a 3G phone so the web browser should perform reasonably well on its 2.4 inch screen. Unlike the other feature phones in their line-up, you can actually use an external memory card (up to 32GB) to store your photos and music.
There's also an FM radio so you can catch a local radio station without having to use your data allowance.
You can get prepaid phones that use T-Mobile's network from other providers.
Platinumtel rebranded itself as PTel and switched from the Sprint to the T-Mobile network. They have pay as you go and monthly plans.
The Tracfone, Net10 and Straight Talk family offers some phones that use the T-Mobile network. This page on the smart phone devices they offer breaks it down by network.
Simple Mobile, as the name says, requires your to bring you own device to use with their SIM cards. They have monthly plans.