Be smart, stay dumb.

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Gymboss interval timer
E7 · Level 2 · A quiet chip Dependable doofus

Gymboss interval timer

Gymboss interval timer and stopwatch.

$21Buy on Amazon
Amazon US, October 2026. Prices change.

A clip-on timer that beeps or vibrates through your work and rest intervals. One AAA battery, no app, no leaderboard. Pairs with the kettlebell, not with your phone.

Off-grid
Runs on battery, crank or solar, so it survives a power cut.

Where to buy

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Survival checklist

What it survives, next to the smart one it replaces.
1
=SURVIVES(threat)Survives…
ThisGymboss interval timer
What it replacesSmart onePeloton Bike+
2
Power cut
TRUE
FALSE
3
Wi-Fi goes down
TRUE
FALSE
4
The company switches off its servers
TRUE
FALSE
5
Someone tries to hack it
TRUE
FALSE
6
A firmware update goes wrong
TRUE
FALSE
7
Twenty years from now
#DEPENDS
FALSE
8
=COUNTIF(TRUE)Total
5 of 65/6and one maybe
0 of 60/6

The smart one is the Peloton Bike+.

Row 7

See it in the sheetIn the sheet
#N/A

We looked. Sorry.

An electric kettlebell would just be heavy.

You are here

Beeps the intervals. Tracks nothing.

Gymboss interval timer

$21
Off-grid
Gymboss interval timer$21
Buy on Amazon