Google Fit wasn't much to write home about when it first appeared in 2014, but it's slowly been gaining extra features and functions over time, and there are now dozens of apps and wearables that plug straight into Google's health platform.
Google Fit is focused mainly on collecting stats — on activity, sleep, weight and so on — rather than providing the comprehensive, all-in-one overview of your health and medical records that Apple Health wants to be. Fit is more basic, but it's easier to use.
Read this: Apple Watch v Google Fit
The Google Fit app is free to download for Android devices and once you've got it up and running it can use the sensors in your phone or on your wearable to track your progress. You can also add activities manually, or use one of the following apps or gadgets for the job instead.
Best Google Fit apps
If MapMyFitness is your running app of choice then you'll be pleased to hear that it's also fully compatible with Google Fit, sharing stats on your runs, improvements in your fitness, calories burned and all the other vital statistics supported by Google's health platform.
Nike+ Run Club
The app previously known as Nike+ Running, this latest incarnation continues the tradition of being one of the best and most versatile run trackers out there for Android, and thankfully the Google Fit integration has been kept. It works well with friends too.
Running app Runkeeper covers all the statistics you want to record at any speed from a walk to a full-on sprint. Having all of the key data backed up in Google Fit as well makes the app even more of an appealing choice.
Runtastic is compatible with nearly every app going, so Google Fit support is no surprise (it's good news too for users of the companion running band and Moment watches). It's also where Adidas is focusing all its energy now that the miCoach service is dead and gone. The Runtastic Me app can also suck in Google Fit data obtained from other sources.
The running and cycling tracking app is one of the best social fitness experiences you can get, and its data can be automatically shared with Google Fit. Set up the connection inside the app to see details of your workouts next to your step data and activity logs.
FitWell Personal Fitness Coach
Save yourself some time going back and forth to the gym by cramming a personal fitness trainer into your phone - though you only get a limited number of lessons for free. You get a ton of video tutorials to work through, plus advice on healthy eating and more.
Another personal trainer-type app, but this time focused more on specific workouts and building up your strength or your aerobic fitness. It's easy to get started and to customize the app to suit your level, and new content and exercises are added to the app regularly.
Instant - Quantified Self
If you want to quantify pretty much every aspect of your day-to-day life then look no further than Instant, which is able to track everything from how much sleep you've had to which smartphone apps you use the most, and give you ideas for living more healthily.
You're no doubt familiar with Google Calendar already but we're including it here because the app recently added Google Fit integration for its goals feature—so if you set an exercise goal (like a daily run) in Calendar, you can then automatically track your progress in Fit.
7 Minute Workout
An app that does exactly what it says on the tin, providing customized, step-by-step workouts that last for seven minutes (and now Google Fit integration). If you want to get fit but you're not sure how to go about it, then 7 Minute Workout is a good place to start.
Out of India comes this fitness app dedicated to helping you get in shape for that 5K or 10K run you've foolishly signed up for. You can also target smaller goals to begin with, and with Google Fit integration, all of your runs get synced back to Android's default fitness app.
If you're looking for a swimming app that works with Google Fit then MySwimPro is just about the best (if not the only) choice out there at the moment. The app gives you hundreds of pool workouts to tackle, which you can customize to suit your requirements.
And... relax. Calm focuses on meditation, sleeping and relaxing to make sure your body is running at its optimum level for most of the time. There are a choice of meditation guides to choose from as well as some premium options if you don't mind paying a little extra.
Cinch Weight Loss
Weight tracking in Google Fit is a bit of a clumsy affair, so use Cinch to do the job for you automatically instead — the app is brighter, prettier and more intuitive than your average weight loss program, though some of the better features do require in-app purchases.
The most obvious option if you're looking to keep tabs on periods and ovulation on Android, Glow is a well-designed app packed with features and has been developed with help from fertility health experts. The Google Fit integration is a welcome bonus.
Instant Heart Rate
You don't necessarily need an expensive chest strap or smartwatch to track your heart rate, because this clever little app can do the job using your phone's camera: it uses the lens to detect how fast the blood is flowing under the skin of your fingertips.
The popular weight loss app has fully integrated with Google's platform so details of your plummeting pounds and shredded stones can be recorded on the dashboard. It's satisfying to see workouts from other apps benefiting your waistline within Google Fit.
Sleep as Android
Sleep as Android is pretty much your only option for sleep tracking in Google Fit right now — Fit itself has only just been updated to accept this type of data, and Sleep as Android will pipe all of your logged slumber times straight into it to combine with your other stats.
Withings Health Mate
The Withings Health Mate app is fully compatible with Google Fit, which means you can suck in a range of fitness data from a variety of devices — smart scales, sleep trackers, blood pressure monitors and more. The app itself is tidy and well presented.
Calorie Counter & Diet Tracker
Different apps offer different levels of Google Fit integration: Calorie Counter & Diet Tracker, for example, can't send anything to Fit, but it can pull steps statistics from Fit, allowing you to see how your walks and runs match to your weight loss and diet program.
This rather aggressively titled app is dedicated to helping you lose weight as quickly as possible, helping you set calorie 'budgets' and track what you're eating every day. With Google Fit integration all of that useful data can be piped between the two apps as well.
Qardio Heart Health
Qardio is interested in your blood pressure and weight-related data and can send data to and from Google Fit as well so you get as comprehensive a picture as possible. It works with a pile of third-party apps and devices, or you can opt to enter your stats manually.
For those living with diabetes, mySugr can be an invaluable way of automatically tracking blood sugars, carbs and other data through a connected device. Thanks to the Google Fit integration, it can seamlessly record how much exercise you're getting every day too.
Lifesum boldly announces itself as a "health movement" and it's certainly comprehensive—you set a lifestyle goal (like losing weight or getting healthier) and the app tells you the diet and the exercise you need to reach it. The rest is then up to you.
Calorie Counter by FatSecret
One of the better calorie-counting apps available for Android, Calorie Counter is able to keep detailed logs of what you're eating and drinking and can even recognize foods from photos, so you don't necessarily have to manually input all of your meals into the app.
Want to do a little bit of yoga? Every day? Daily Yoga is the app for you, with more than 500 poses and over 100 lessons available (some of which you need to pay for). It's suitable for all levels of experience and of course works with Google Fit, which is why it's in this list.
Best Google Fit compatible smartwatches
LG Watch Sport
If you want the best and the sportiest watch that Android Wear can offer at the moment then the LG Watch Sport is probably it. This isn't the slimmest watch but it's the best showcase for Android Wear right now, and that includes the Google Fit features.
Huawei Watch 2
If you're looking for a sensor-packed smartwatch that works with Google Fit, then another good options is the Huawei Watch 2. There's the usual collection of gyroscopes and accelerometers, and there's also GPS, heart rate, NFC and 4G LTE support, so it's well and truly primed for activity.
Best Google Fit compatible fitness trackers
Under Armour Band
Under Armour's UA Band wearable works fine with Google Fit (via the UA Record app). It's a tracker worth considering if you're keen on the rest of the Under Armour Healthbox pack or don't want a full-on smartwatch on your wrist.
Xiaomi Mi Band 2
If you don't want to shell out a lot on a tracker then this wearable from Xiaomi will do the basics for a lot, lot less. Okay, the supplied app isn't the best in the world, but you can get around that by syncing all your data to Google Fit instead.
Other devices that work with Google Fit
If you want to get serious about your sleep tracking then this smart light and alarm better known as the Withings Aura fits the bill. An optional accessory monitors your tossing and turning and sends all the data back to the Withings Health Mate app, and thus through to Google Fit.
The great thing about the Polar Balance is that it supports up to 10 individual profiles, so if you've got a big household (or are running a hotel) you're in luck. It'll give you your weight and body mass index, and funnel them into the Polar Flow app, which you can connect to Google Fit. You can also link it to your smartphone or Polar Loop band to compare your weight to your activity.
If your favourite Google Fit compatible app isn't included, let us know using the comments below and make sure you check out our guide to getting started with Google Fit.