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Garmin
7 metrics in Kaizora
Sports watches with long battery life and accurate GPS. A direct import is coming; on an iPhone, what Garmin Connect shares with Apple Health arrives today.
Who It’s For
For runners, cyclists, and anyone outdoors for hours at a time.
Where to Buy
United States
See at Garmin, Garmin, United States (opens in a new tab)Not an affiliate link
Canada
See at Garmin, Garmin, Canada (opens in a new tab)Not an affiliate link
What It Measures in Kaizora
Garmin’s watches measure steps, heart rate, sleep and its stages, workouts with GPS, and blood oxygen on many models.
- Heart rate
- Sleep and its stages
- Steps and exercise
How It Gets to Kaizora
A direct import is coming. On an iPhone, what Garmin Connect shares with Apple Health already arrives with your Apple Health export.
Strengths
- Long battery life and accurate GPS for running, cycling, and the outdoors.
- Many models, from simple fitness watches to multisport ones.
Limits
- Body Battery, stress, and training scores are Garmin’s own scales.
- Kaizora can’t import its data directly yet.
About What It Measures
How Does Alcohol Affect Your Sleep?
Why a drink helps you fall asleep and then disrupts the second half of the night, what it does to REM sleep and heart rate, how much it takes, and how to see the effect in your own data.
How Many Steps a Day Do You Really Need?
Where 10,000 steps came from, what meta-analyses of step counts and mortality found, why the benefit levels off at 6,000 to 10,000 depending on age, and how to count steps consistently.
How Much Deep and REM Sleep Do You Need?
What deep (slow-wave) and REM sleep do, roughly how much of a night each takes, what two large reviews say about change with age, and why chasing your watch's stage numbers can backfire.
How Much Sleep Do Adults Need?
The AASM's 7 hours or more and the National Sleep Foundation's 7 to 9, what short and long sleep are linked to, why time in bed isn't time asleep, and how to judge your own sleep.
How to Estimate Your Maximum Heart Rate and Training Zones
Why 220 minus your age is only a rough guess, the Tanaka formula, how guidelines turn a maximum into moderate and vigorous zones, and how to find your own maximum.
How to Find Out Where Your Time Goes
Why guesses about your own hours are unreliable, how time diaries and timers record them instead, what a calendar does and doesn't tell you, and how to turn what you find into a target.
What Can a Smartwatch ECG Tell You, and What Can't It?
What a single-lead watch ECG records, what its classifications mean, what the Apple Heart Study found about irregular rhythm alerts, and why it can't detect a heart attack.
How to Bring Your Apple Health Data Together With Your Bank and Nutrition Data
A step-by-step guide to putting your iPhone's health data, your food diary, and your bank statements in one history, without counting anything twice.
Why Your Devices Disagree About Your Weight and Your Steps
Two scales give two weights, and your phone and your watch count different steps. Here's why, which number to trust, and how to keep the comparison fair.
How Accurate Are the Sleep Stages From Your Watch or Ring?
What deep, light, and REM sleep really are, how a wearable estimates them, what studies against sleep lab recordings found, and which sleep numbers are worth tracking.
What's a Normal Resting Heart Rate, and What Makes It Change?
The 60 to 100 bpm range, why your own normal matters more than anyone's average, what moves resting heart rate up and down, and how to follow it over months.