GLP1SHOTDAY.APP / GUIDES / APPLE HEALTH SYNC
Apple Health & Smart Scale Sync
Most GLP-1 trackers only log a number on a scale. GLP1ShotDay reads what actually changes while you're on treatment — weight, body fat, and lean muscle mass — straight from Apple Health or Google Fit.
Quick answer
Yes — GLP1ShotDay reads weight, body fat %, lean mass, and BMI from Apple Health (iOS) or Google Fit / Health Connect (Android). Connect a compatible smart scale — Withings, Renpho, Garmin, or Xiaomi — and your body composition updates automatically every time you open the app. No smart scale? Manual measurements work too.
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SEC. 01
Two ways to sync body composition
Smart scale → Apple Health / Google Fit → app
RECOMMENDED — SYNCS AUTOMATICALLY EVERY TIME YOU OPEN THE APP
Manual waist / hip / height measurements
ESTIMATED VIA THE U.S. NAVY BODY FAT FORMULA — NO SCALE NEEDED
DEXA or InBody results
HIGHEST-PRIORITY MANUAL ENTRY — MOST ACCURATE SOURCE AVAILABLE
Only a regular scale
STILL WORKS — WEIGHT LOGS NORMALLY, BODY-COMP FIELDS STAY EMPTY
Your smart scale syncs to Apple Health or Google Fit on its own — GLP1ShotDay just reads it. Nothing to enter by hand.
SEC. 02
What syncs, exactly
F—01
Weight
Every entry your scale logs, timestamped and pulled in automatically — no manual re-entry.
F—02
Body fat %
Read from bioelectrical impedance scales that support it — Withings, Renpho, Garmin, Xiaomi.
F—03
Lean mass
The metric almost no other GLP-1 tracker shows. Up to 39% of weight lost on GLP-1s can be muscle.
F—04
BMI
Calculated and synced alongside weight, for a full picture without extra data entry.
SEC. 03
Compatible smart scales
Withings
Body / Body+ / Body Comp — syncs to Apple Health automatically
Renpho
Most models — syncs via the Renpho app to Apple Health or Google Fit
Garmin
Index S2 and similar — syncs through Garmin Connect
Xiaomi
Mi Body Composition Scale — syncs via Zepp Life / Mi Fit
Data conflicts are never resolved silently — if a manual entry and a synced entry disagree on the same date, GLP1ShotDay asks you which one to keep.
SEC. 04
Questions & answers
Does a GLP-1 tracker sync with Apple Health?Q—01 +
Yes. GLP1ShotDay reads weight, body fat percentage, lean body mass and BMI directly from Apple Health on iOS. Connect once in onboarding and it re-syncs automatically every time you open the app.
Can I use a smart scale like Withings or Renpho?Q—02 +
Yes — Withings, Renpho, Garmin and Xiaomi scales all write to Apple Health or Google Fit automatically. GLP1ShotDay reads that data; you don't enter anything by hand.
What if I don't have a smart scale?Q—03 +
You can enter waist, hip and height measurements and the app estimates body fat percentage and lean mass using the U.S. Navy body fat formula. Less precise than a scale, but no hardware required.
Will syncing overwrite my manual entries?Q—04 +
No. Manual entries are never auto-overwritten. If Apple Health and a manual entry disagree on the same date, the app asks you which one to keep. Every record is tagged with its source.
Does it work with Android and Google Fit?Q—05 +
Yes. On Android, the same sync runs through Google Fit and Health Connect instead of Apple Health, reading the same four metrics from your connected scale.
BODY COMPOSITION,
not just a number.
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