AT&T vs Ultra Mobile: Which carrier is best?

We compared AT&T & Ultra Mobile plans, coverage & customer ratings: Which cell phone service is best for you?

Unlimited data
AT&T 5G & 4G networks
$900/yr Total cost
10GB data
T-Mobile 5G & 4G networks
Save $579/yr
* Only $60 for 3 Months Service
15GB data
T-Mobile 5G & 4G networks
Save $440/yr
* 20% Off First Month
Unlimited data
T-Mobile 5G & 4G networks
Save $322/yr
* 20% Off First Month

MoneySavingPro independently researches the products & services to bring you our recommendations. We may earn money when you click our links - disclosure policy.

Looking to switch carrier but not sure if Ultra Mobile or AT&T is better?

Within this guide, you'll be able to compare Ultra Mobile and AT&T coverage, features, plans and prices side-by-side, so you can decide for yourself which carrier offers the best deal.

Switch & Save $600/yr - Calculate Your Savings

Ultra Mobile vs AT&T plans

Ultra Mobile 3GB

Ultra Mobile logo
  • T-Mobile 5G & 4G LTE networks
  • Unlimited talk and text
  • 3GB data
  • $699 in annual savings


See at Ultra Mobile

* Only $30 for 3 Months Service

3.5 Read our Ultra Mobile review

Compare AT&T unlimited plans

Plan Data Monthly Price Annual Cost
AT&T Unlimited Starter Unlimited $65 $780
AT&T Unlimited Extra Unlimited $75 $900
AT&T Unlimited Premium Unlimited $85 $1,020

AT&T vs Ultra Mobile comparison

Keep your AT&T phone, number & coverage: Save $322 per year

Carrier Network Coverage 4G/5G Data Price Annual Cost
AT&T AT&T 4G & 5G Unlimited $75/mo $900/yr
Ultra Mobile AT&T 4G & 5G Unlimited $49/mo $578/yr
Savings $26/mo $322/yr

Ultra Mobile vs AT&T coverage

Ultra Mobile is powered by T-Mobile. Coverage can vary depending on your location. You can check their availability in your area by using our coverage checker.

Ultra Mobile coverage

Ultra Mobile is powered by T-Mobile 5G & 4G LTE wireless networks.

View Ultra Mobile coverage map

T-Mobile coverage map

AT&T coverage

View AT&T coverage map

AT&T coverage map

Find the cheapest cell phone service in your area

Enter your ZIP code below to find the best cell phone service in your area.

Switch & Save $600 per year
Find Cheap Cell Phone Plans in Your Area

Ultra Mobile vs AT&T plan features

Carrier Features Ultra MobileAT&T
Networks T-MobileAT&T
Data Speed 5G & 4G LTE5G & 4G LTE
3G Network GSMGSM
Mobile Hotspot
Bring Your Phone
Keep Your Number
Contract No - prepaidNo - Postpaid
Credit Check
Customer Service 24/7
Money Back Guarantee Yes - 10 day
5G 0
Taxes/fees included
WiFi Calling
Visual Voicemail
Multi-line Discounts
Multi-month Discounts
International Calls Yes - Includes 80 countries
International Roaming

Ultra Mobile vs AT&T customer service

Ultra Mobile customer service

72 Ultra Mobile customer reviews

Contact Ultra Mobile customer care

AT&T customer service

Contact AT&T customer care

  • Call (800) 331-0500

  • Tag @att on Twitter


Ultra Mobile comparison guides

Calculate Your Savings How much could you save by switching carrier?
Green smartphone
Find the cheapest phone plans in your area