HomePlansXFINITY MobileBy the GigUnlimited · 1 Line
XFINITY Mobile
XFINITY Mobile

By the Gig Plan With 10 GB Data For 1 Line: Cost & Review

LTENo Contract

If you want to pay-as-you-go for cellular data usage, the By the Gig plan from XFINITY Mobile is an excellent and affordable option, especially if you already pay for other Comcast services.

1 Line
$15.00/mo
no autopay discount published
Get this plan
1 Line$15.001 Line$30.002 Lines$15.002 Lines$30.002 Lines$60.003 Lines$15.003 Lines$30.003 Lines$60.004 Lines$15.004 Lines$30.004 Lines$60.005 Lines$15.005 Lines$30.005 Lines$60.006 Lines$15.006 Lines$30.006 Lines$60.007 Lines$15.007 Lines$30.007 Lines$60.008 Lines$15.008 Lines$30.008 Lines$60.009 Lines$15.009 Lines$30.009 Lines$60.0010 Lines$15.0010 Lines$30.0010 Lines$60.00
DataPay-per-GB
MinutesUnlimited
MessagesUnlimited
Contractno-contract
RoamingUS & territories
Pricing — 1 Line
All Line Options
LinesPer LineTotal/mo
1 Line(current)$15.00$15.00
XFINITY Mobile By the Gig Plan Details
Plan Features
Pay-as-you-go data at $15/GB on Verizon with 5G access. Unlimited talk and text. No confirmed hotspot. Requires Xfinity Internet. Must be set up via Xfinity sales or support.
Data, Minutes & Messages
Unlimited talk and text. Data billed at $15/GB consumed. No fixed data bucket.
Plan Speed
Verizon LTE and 5G speeds. No throttling in the traditional sense - data billed per gigabyte used.
Contract Details
No contract. No early termination fee. Xfinity Internet subscription required. Enrollment through sales or support, not self-service.
Overage Charges
There are no 'overages' - every gigabyte used is billed at $15. Heavy data months can get expensive fast.
Mobile Hotspot
Not listed as a confirmed feature. Hotspot use would consume the $15/GB data budget.
Pros
Only pay for the data actually used - potentially lowest monthly bill for light cellular use Verizon network with 5G access No contract Flat $15/GB rate - predictable per-unit cost
Cons
Requires Xfinity Internet - not available standalone Not self-serviceable - must enroll and manage through sales or support One bad month of data use can exceed unlimited plan costs quickly No hotspot confirmed No international features Taxes and fees on top
The verdict, & two little voices

Should you actually get By the Gig for 1 line?

The editor weighs in — flanked by the optimist on her shoulder and the cynic on the other.
UP
Our takeEditorial
$15/GB on Verizon makes sense only for a phone that barely touches cellular - a single streaming hour changes the math fast.
UpPhone Team
The Optimist
“For a WiFi-first device that needs a backup signal, paying only for what you use is the honest pricing model.”
— the angel on your shoulder
The Cynic
“Not being able to manage this plan in the app in 2026 is a customer support nightmare waiting to happen.”
— the devil in your other ear
FCC Disclosure
Broadband Facts
XFINITY Mobile · By the Gig
Official label
Monthly Price
$20.00
Additional Charges & Terms
One-time fees$25.00 activation
Government taxesVary by location. Not included above.
Speeds Provided with Plan
TechnologyDownloadUploadLatency
4G LTE11-75 Mbps1-13 Mbps49-75 ms
5G35-143 Mbps5-31 Mbps42-64 ms
5G+ / UW195-634 Mbps10-53 Mbps37-57 ms
Typical ranges as reported by the carrier. Real speeds vary.
Data & Features
Data included with monthly price1 GB
Data throttleAfter 20GB, After 20 GB total usage, data de-prioritized during congestion
Mobile hotspotNot included
Video streaming qualitySD 480p
Disclosures
XFINITY Mobile By the Gig Full Features
Data
Pay-per-GB
Minutes
Unlimited
Messages
Unlimited
Roaming
US & territories
Max speed
5G + 4G LTE
Contract
no-contract
Change Number of Lines
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