Right now you can lock in a year of unlimited phone service for just $19 a month
Source: Android Authority

Offer Overview
Prepaid phone service is often significantly cheaper than postpaid plans. While limited prepaid plans can fall well under $25 a month, unlimited service usually starts at that price point—unless you consider Tello.
From now until March 11, new Tello customers can lock in a year of unlimited service for $19 / month via the promo link. There’s no requirement to pay for the entire year upfront.
Plan Details
- Network: Tello operates on T‑Mobile’s network, offering solid coverage in many areas.
- High‑speed data: 50 GB of high‑speed data each month.
- Hotspot data: 10 GB of hotspot data per month.
- Unlimited data: After the high‑speed allotment is used, data continues at reduced speeds (approximately 2G‑like), sufficient for basic tasks such as checking email or sending messages.
Performance and Limitations
The reduced‑speed unlimited data is adequate for light usage but may be a deal‑breaker for heavy data consumers. For most users—especially those who rely on Wi‑Fi for large downloads—50 GB of high‑speed data is more than enough. As a personal example, I typically stay under 15 GB of mobile data each month, handling the bulk of data‑intensive tasks over Wi‑Fi.
Conclusion
Tello may lack some of the premium features found in higher‑priced prepaid or postpaid rivals, but at $19 / month it offers a compelling way to save on unlimited service for a year. If you’re looking to cut costs while still enjoying solid coverage and a generous high‑speed data allowance, Tello is worth considering.