The Baseline
The numbers behind every score on your wrist.
How WHOOP, Garmin, Oura, Apple and Fitbit measure the same body differently, which numbers actually compare between friends, and how to read your own baseline instead of chasing someone else’s.
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How to Apple Watch competition with friends: how it works, and its one limit
Apple Watch competitions are a free seven-day ring race with one catch: everyone needs an Apple Watch. How to run one, and what to do about the rest.
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Comparability Apple Watch readiness score vs WHOOP: has Apple caught up?
Apple Watch Series 12 added a 0 to 10 readiness score, five-minute HRV and a Health Age. How it compares to WHOOP, and what still does not transfer.
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Alternatives Garmin challenges: how Connect challenges work, and where they run out
Garmin Connect has badges, in-app challenges and Connect+ features. Here is what each one does, what it cannot do, and how to race friends on other brands.
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Comparability Health Age vs fitness age: what Apple, Garmin and the rest are really telling you
Apple added Health Age, Garmin has Fitness Age, others estimate a body age. Different inputs, and none compare between people. Here is how to read yours.
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How to How to run a virtual fitness challenge that survives the distance
A virtual fitness challenge has three problems a same-room one lacks: mixed devices, nobody watching, no shared energy. Here is how to design around them.
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How to How to run a work fitness challenge people actually join
Most office fitness challenges reward the fittest people anyway. Here is how to design one for broad participation, mixed devices and privacy.
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How to 40 fitness challenge ideas that survive past the first week
40 fitness challenge ideas for friends, work and remote groups: step races, distance chases, strength ladders and streaks, plus the shape that makes them stick.
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Alternatives The best step challenge apps for groups, work and mixed devices in 2026
The best step challenge apps in 2026 for friends, big groups and workplaces: which are free, which put iPhone and Android in one race, and which stay fair.
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Alternatives Strava alternatives, sorted by what you actually want it for
The best Strava alternatives in 2026, sorted by job: free activity tracking, deep training analysis, and group challenges that do not need everyone to pay.
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Alternatives Apple Watch vs Garmin for running: which one should be on your wrist
A runner-first comparison of Apple Watch and Garmin in 2026: GPS and heart rate accuracy, battery, training features, and which fits how you actually run.
Apple WatchGarmin Read - Comparability
Why your heart rate zones are different on every watch
Your Zone 2 on a Garmin is not your Zone 2 on an Apple Watch or WHOOP. Here is why the zones move, and how to set them so your easy runs stay easy.
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Data How many steps a day actually matter, according to the science
The 10,000 step target was a marketing slogan. Here is what the recent large studies actually found about steps and health, and the number to aim for.
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Comparability Why your Apple Watch, Garmin and Samsung all show a different VO2 max
Your watch estimates VO2 max from heart rate and pace, so the number changes with the brand, the activity and the algorithm. Here is what it really means.
Apple WatchGarminSamsung Read - Comparability
Why your watch, the gym machine and the app never agree on calories
Your watch, the treadmill and the app can differ by hundreds of calories for one workout. Here is what each is really estimating, and which to trust.
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Alternatives The best fitness competition apps for competing with friends in 2026
The best fitness competition apps of 2026 for friends and groups: which are free, which work across Apple Watch, Garmin and Fitbit, and which one to pick.
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Alternatives Bevel alternatives: what to use instead, and when Bevel is the right call
Bevel turns an Apple Watch, Garmin or Oura into a WHOOP-style dashboard. Here is what it does well, what it does not do at all, and what fills each gap.
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Alternatives Fitbit Challenges are gone. Here is what actually replaces them
Google removed Fitbit Challenges, Adventures and open groups in March 2023 and never brought them back. Here is where the Workweek Hustle crowd went.
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How to How to run a fitness challenge your friends will actually finish
Most group fitness challenges die by day nine. The fixes are boring and specific: the right metric, the right length, the right stakes, a fair scoreboard.
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Comparability WHOOP Recovery vs Garmin Body Battery vs Oura Readiness: why the numbers never match
All three report a 0 to 100 score, but each measures something different, over a different window, against its own baseline. Here is what each one means.
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Data Does competing with friends actually make you fitter? What the research says
Five studies on social exercise, from a 1.1 million-runner network to head-to-head trials of competition against support. The answer is yes, with caveats.
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Comparability Why your phone, watch and ring all show a different step count
Your phone, watch and ring can disagree by thousands of steps a day. Here is what each one is actually counting, and which number to trust.
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Comparability Active minutes, explained: the one cross-device number worth competing on
Apple Exercise Minutes, Fitbit Active Zone Minutes and Garmin Intensity Minutes measure almost the same thing. Here is how they line up across brands.
Apple WatchFitbitGarmin Read
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