Boost Mobile vs Ultra Mobile

By Rob Webber • Founder & Editor

Head-to-head comparison of plans, features, and pricing

Boost Mobile

Boost Mobile

AT&T network

$25/mo

3 plans available

Ultra Mobile

Ultra Mobile

T-Mobile network

$—/mo

0 plans available

Looking to switch carrier but not sure if Boost Mobile or Ultra Mobile is better? Within this guide, you'll be able to compare Boost Mobile and Ultra Mobile coverage, features, plans, and prices side-by-side, so you can decide which carrier offers the best deal.

Boost Mobile vs Ultra Mobile: Coverage & Plan Comparison 2026

  1. 1. Boost Mobile vs Ultra Mobile: Reviews
  2. 2. Boost Mobile vs Ultra Mobile: Plans
  3. 3. Boost Mobile vs Ultra Mobile: Coverage
  4. 4. Boost Mobile vs Ultra Mobile: Features
  5. 5. Our Verdict
  6. 6. FAQ

Boost Mobile vs Ultra Mobile: Reviews

Boost Mobile
Our Rating:
4/5
See Deals → View Plans

Pros

  • ✓ AT&T & T-Mobile 5G & 4G LTE network coverage
  • ✓ Multi-line discounts for family plans
  • ✓ Mobile hotspot access
  • ✓ eSIM compatible

Cons

  • ✗ No free international calls
  • ✗ International roaming is limited
Ultra Mobile
Our Rating:
3.4/5
See Deals → View Plans

Pros

  • ✓ T-Mobile 5G & 4G LTE network coverage
  • ✓ International calling included
  • ✓ Plans from $15/mo
  • ✓ eSIM compatible

Cons

  • ✗ Customer service reviews are mixed
  • ✗ Limited brand recognition
  • ✗ Fewer plan options than competitors

Boost Mobile vs Ultra Mobile: Plans

Boost Mobile Top Plan

Unlimited

$25/mo

Powered by AT&T

See at Boost Mobile →

Boost Mobile Plans

Unlimited

Unlimited · 5G

$25

See Plan →

Unlimited+

Unlimited · 5G

$50

See Plan →

Unlimited Premium

Unlimited · 5G

$60

See Plan →
Ultra Mobile Top Plan

15GB

$39/mo

Powered by T-Mobile

See at Ultra Mobile →

Ultra Mobile Plans

Boost Mobile vs Ultra Mobile: Coverage

Boost Mobile

Boost Mobile is powered by AT&T 5G & 4G LTE wireless networks.

View Boost Mobile coverage map →

Ultra Mobile

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

View Ultra Mobile coverage map →

Boost Mobile is powered by AT&T and Ultra Mobile is powered by T-Mobile. Coverage varies by location — check availability in your area.

Boost Mobile vs Ultra Mobile: Features

Feature Boost Mobile Ultra Mobile
Networks AT&T & T-Mobile —
Data Speed 5G & 4G LTE —
3G Network GSM —
Mobile Hotspot Yes - Select plans —
5G ✅ —
VoLTE ✅ —
WiFi Calling ✅ —
Visual Voicemail ✅ —
Bring Your Phone ✅ —
Keep Your Number ✅ —
Contract No Contract —
Credit Check ❌ —
Taxes Included ❌ —
Multi-line Discounts ✅ —
Multi-month Discounts ❌ —
Money Back Guarantee ❌ —
Customer Service Mon-Sun 4am-12am ET —
International Calls Yes - As add-on —
International Roaming Yes - As add-on —

Our Verdict

Ultra Mobile is better for budget-conscious users who want plans starting at $0/mo on the T-Mobile network. Boost Mobile is better if you want plans on the AT&T network starting at $25/mo. Both carriers offer the same tower coverage as Big Wireless at a fraction of the price.

Who Should Choose Boost Mobile

  • ✓ You want the AT&T network
  • ✓ Plans starting at $25/mo
  • ✓ 3 plan options to choose from
View Boost Mobile Plans →

Who Should Choose Ultra Mobile

  • ✓ You want the T-Mobile network
  • ✓ Plans starting at $0/mo
  • ✓ 0 plan options to choose from
View Ultra Mobile Plans →

Why You Can Trust This Comparison

I've spent years helping people ditch overpriced phone plans by exposing hidden fees and carrier tricks. At MoneySavingPro, we go beyond the fine print, testing and comparing real-world network performance so you don't have to.

I've personally tested Boost Mobile, Ultra Mobile, and other low-cost providers, comparing their speeds, coverage, and pricing to the Big 3. If there's a smarter way to save, you'll hear about it here first.

— Rob Webber, Founder & Editor

Compare Boost Mobile vs Ultra Mobile — How Much Could You Save?

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Frequently Asked Questions

Is Boost Mobile or Ultra Mobile cheaper?
Ultra Mobile is cheaper, with plans starting at $0/mo. Boost Mobile starts at $25/mo.
Which network does Boost Mobile use?
Boost Mobile uses the AT&T network. You get the same coverage as AT&T customers at a lower price.
Which network does Ultra Mobile use?
Ultra Mobile uses the T-Mobile network. You get the same coverage as T-Mobile customers at a lower price.
Can I keep my phone number if I switch to Boost Mobile or Ultra Mobile?
Yes. Both carriers support number porting. You can transfer your existing phone number in about 10-30 minutes during the sign-up process.
Do Boost Mobile and Ultra Mobile offer 5G?
Most modern plans from both Boost Mobile and Ultra Mobile include 5G access at no extra cost where the network supports it.