Is T-Mobile or Xfinity (Comcast) faster?

Based on 2,652 verified speed tests, Xfinity (Comcast) is faster overall. T-Mobile averages 167 Mbps download, Xfinity (Comcast) averages 361 Mbps download.

What is the average speed difference between T-Mobile and Xfinity (Comcast)?

The average download speed difference is 194 Mbps. Upload speed difference is 47 Mbps. Ping difference is 24 ms.

Should I choose T-Mobile or Xfinity (Comcast)?

It depends on your use case. Xfinity (Comcast) offers faster average speeds, but actual performance varies by location and plan. Test your current connection and compare to both averages before switching.

T-Mobile vs Xfinity (Comcast)

Full speed comparison based on 2,652 verified measurements.

Overall Winner: Xfinity (Comcast)

T-Mobile

Download

167 Mbps

Upload

28 Mbps

Ping

57 ms

Based on 886 measurements · Full T-Mobile stats →

Xfinity (Comcast)

WINNER

Download Wins

361 Mbps

Upload Wins

75 Mbps

Ping Wins

33 ms

Based on 1,766 measurements · Full Xfinity (Comcast) stats →

Speed Difference Summary

Download difference

194 Mbps

Xfinity (Comcast) is faster

Upload difference

47 Mbps

Xfinity (Comcast) is faster

Ping difference

24 ms

Xfinity (Comcast) has lower latency

By Country

Head-to-head comparison where both ISPs have user data.

United States Xfinity (Comcast) wins

T-Mobile 167 Mbps (884 tests)

Xfinity (Comcast) 361 Mbps (1766 tests)

Test your own speed

See if your connection matches the T-Mobile or Xfinity (Comcast) average.

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How T-Mobile Compares to Xfinity (Comcast)

Based on 2,652 verified speed tests from T-Mobile and Xfinity (Comcast) customers, Xfinity (Comcast) delivers faster average speeds.

T-Mobile averages 167 Mbps download with 28 Mbps upload and 57 ms ping. Xfinity (Comcast) averages 361 Mbps download with 75 Mbps upload and 33 ms ping.

Averages tell only part of the story — actual speeds vary by your specific plan, location, time of day, and whether you use Ethernet or Wi-Fi. Run a speed test on your current connection to see how it compares to both averages before making a switching decision.

T-Mobile speed Xfinity (Comcast) speed All ISPs Country speeds