Optimum Mobile vs Ultra Mobile

By Rob Webber • Founder & Editor

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

Optimum Mobile

Optimum Mobile

T-Mobile network

$—/mo

0 plans available

Ultra Mobile

Ultra Mobile

T-Mobile network

$—/mo

0 plans available

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

Optimum Mobile vs Ultra Mobile: Coverage & Plan Comparison 2026

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

Optimum Mobile vs Ultra Mobile: Reviews

Optimum Mobile
Our Rating:
3.2/5
See Deals → View Plans

Pros

  • ✓ T-Mobile 5G & 4G LTE network coverage
  • ✓ Bundled savings for Optimum Internet customers
  • ✓ No contract

Cons

  • ✗ Requires Optimum Internet
  • ✗ Limited availability
  • ✗ Mixed customer service
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

Optimum Mobile vs Ultra Mobile: Plans

Optimum Mobile Top Plan

Unlimited

$45/mo

Powered by T-Mobile

See at Optimum Mobile →

Optimum Mobile Plans

Ultra Mobile Top Plan

15GB

$39/mo

Powered by T-Mobile

See at Ultra Mobile →

Ultra Mobile Plans

Optimum Mobile vs Ultra Mobile: Coverage

Optimum Mobile

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

View Optimum Mobile coverage map →

Ultra Mobile

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

View Ultra Mobile coverage map →

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

Optimum Mobile vs Ultra Mobile: Features

Feature Optimum Mobile Ultra Mobile
Networks — —
Data Speed — —
3G Network — —
Mobile Hotspot — —
5G — —
VoLTE — —
WiFi Calling — —
Visual Voicemail — —
Bring Your Phone — —
Keep Your Number — —
Contract — —
Credit Check — —
Taxes Included — —
Multi-line Discounts — —
Multi-month Discounts — —
Money Back Guarantee — —
Customer Service — —
International Calls — —
International Roaming — —

Our Verdict

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

Who Should Choose Optimum Mobile

  • ✓ You want the T-Mobile network
  • ✓ Plans starting at $0/mo
  • ✓ 0 plan options to choose from
View Optimum 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 Optimum 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 Optimum Mobile vs Ultra Mobile — How Much Could You Save?

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Frequently Asked Questions

Is Optimum Mobile or Ultra Mobile cheaper?
Optimum Mobile is cheaper, with plans starting at $0/mo. Ultra Mobile starts at $0/mo.
Which network does Optimum Mobile use?
Optimum Mobile uses the T-Mobile network. You get the same coverage as T-Mobile 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 Optimum 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 Optimum Mobile and Ultra Mobile offer 5G?
Most modern plans from both Optimum Mobile and Ultra Mobile include 5G access at no extra cost where the network supports it.