Home › Plans › Boost Mobile › Unlimited+ › 4 lines
B
Boost Mobile · Family plan · 4 lines
Powered by T-Mobile

Unlimited+ for 4 Lines

At 4 lines, Unlimited+ drops to $25.00/line — totaling $100.00/mo for the whole family.

Your family bill at 4 lines
Per month
$100.00
$25.00 × 4 lines
Per year
$1,200.00
Save $25.00/line vs 1 line
Best for
Family of 4, mixed devices
Unlimited+ at 4 lines on the Boost Mobile network. 40 GB data per line.
Line count (this page)
4 lines
Per line at 4 lines
$25.00/mo
Save $25.00/line
Total $100.00/mo · $1,200.00/yr
Available rates
$100.00/mo total · $25.00/linewith autopay
$120.00/mo total · $30.00/linestandard
Sign up for 4 lines

How Unlimited+ changes with line count

1 line
2 lines
3 lines
4 lines(this page)
Headline price reflects the lowest available rate (typically autopay/paperless). Tap into any line count for the full breakdown.
Family-plan review

Why 4 lines on Unlimited+

At 4 lines, Unlimited+ offers $25.00/line. That's a saving of $25.00/line compared to a single line.

Coverage and perks remain consistent across all line counts on Unlimited+. Activation fees and taxes are not included in the headline price — check Boost Mobile's website for the full bill estimate.

Pros at 4 lines
  • $25.00/line savings vs single line
  • Boost Mobile network coverage
  • 40 GB data per line
Cons at 4 lines
  • Taxes and fees not included in headline price
  • Price increases if you add lines past 4

FAQ — Unlimited+ for 4 lines

How much is Unlimited+ for 4 lines?

Unlimited+ runs $100.00/mo total for 4 lines — that's $25.00/line/mo after the multi-line discount. The pricing breakdown above shows totals across all line tiers Boost Mobile offers.

Is 4 lines on Unlimited+ a good deal?

4 lines typically lands Unlimited+ closer to MVNO single-line pricing on a per-line basis. The break-even versus comparable MVNOs is usually around 3 lines; at 4 lines you're getting Boost Mobile's full network footprint at MVNO-tier prices.

Can I add more lines to my Unlimited+ plan later?

Yes — Boost Mobile lets you add lines mid-plan with prorated billing. The per-line price drops automatically as you cross line-count thresholds (typically at 2, 3, and 4 lines). Removing lines is also straightforward with no ETF on no-contract plans.

Does Unlimited+ include hotspot for 4 lines?

Hotspot allowances on Unlimited+ are typically per-line (each line gets the published hotspot allowance). Check the plan-detail page for the exact GB; most premium unlimited plans include 25–60 GB per line at high speeds, dropping to slow speeds afterward.

What's the activation cost for 4 lines on Unlimited+?

Boost Mobile typically charges a one-time activation fee per line ($25–$45/line is common). The pricing breakdown above does not include activation; budget for it on your first bill.

The verdict, & two little voices

Should you actually get Unlimited+ for 4 lines?

The editor weighs in — flanked by the optimist on her shoulder and the cynic on the other.
UP
Our takeEditorial
A $25 single-line deal on two networks, but 512 kbps after 30 GB is dial-up territory, and there's no hotspot.
— UpPhone Team
The Optimist
“Two networks, no contract, $25 with AutoPay — the math works for a light single line.”
— the angel on your shoulder
The Cynic
“Throttled to 512 kbps and no hotspot? Boost is selling 'unlimited' with a very tight fine print definition.”
— the devil in your other ear
FCC Disclosure
Broadband Facts
Boost Mobile · Unlimited
Monthly Price
$25.00
Additional Charges & Terms
Speeds Provided with Plan
TechnologyDownloadUploadLatency
4G LTE4-35 Mbps1-5 Mbps30-56 ms
5G70-356 Mbps5-26 Mbps21-37 ms
Typical ranges as reported by Boost Mobile. Real speeds vary.
Data & Features
Data included with monthly priceUnlimited
Data throttleAfter 30GB, Data throttled to 512 Kbps after 30 GB premium data. No cut-off, only speed reduction.
Mobile hotspotNot included
Disclosures
Network management policyPrivacy policy
Sourced from Boost Mobile’s FCC label · last verified 2026-05-05.UpPhone does not modify these figures.

Same plan, different line count

1 line
$50.00/mo
with autopay
2 lines
$40.00/line
with autopay
3 lines
$36.67/line
with autopay
4 lines
$25.00/line
with autopay
This page
Canonical
Compare Unlimited+ (all line counts)