Garmin vs Fitbit: Which Fitness Watch Should You Buy?

Garmin and Fitbit are the two names most New Zealanders shortlist when they want a fitness watch, but they are built on different ideas. Fitbit, now part of Google, focuses on everyday health, sleep and simple motivation in a slim, friendly package. Garmin started with GPS and sport, and its watches lean towards training data, longer battery life and outdoor use. This guide compares the two brands on what actually matters day to day, so you can pick the right one from our Smart Watches collection without paying for features you will never use.

Garmin vs Fitbit at a Glance

If you only read one section, make it this one. The short version: Fitbit suits people who want an easy, comfortable tracker for steps, sleep and general wellbeing. Garmin suits people who run, ride, swim or hike and want detailed training feedback and a battery that lasts well over a week on most models.

What Has Changed with Fitbit in 2026

Before comparing hardware, it is worth knowing about a big software change. In May 2026 Google replaced the Fitbit app with a new app called Google Health, and Fitbit Premium was renamed Google Health Premium. Your existing Fitbit data carries across, and the Fitbit name continues on the hardware itself. You now need a Google account to use a Fitbit device. Google's Google Health help centre explains the transition and which coaching features need a Premium subscription.

For buyers, the practical takeaway is simple: Fitbit hardware is now tied more closely to Google's ecosystem. If you already use Gmail, Google Maps and an Android phone, that feels natural. If you prefer to keep your fitness data separate from your Google account, Garmin may suit you better.

Fitness Trackers: Fitbit Charge 6 vs Garmin vivosmart 5

Band-style trackers are the most affordable way into either brand and are comfortable to wear to bed, which matters for sleep tracking.

The Fitbit Charge 6 is the stronger all-rounder of the two. According to Google's official Charge 6 specifications, it has built-in GPS and GLONASS, a 5 ATM water resistance rating and up to 7 days of battery life, although the always-on display and SpO2 tracking will shorten that. It also runs a handful of Google apps on the wrist, including Google Maps directions and YouTube Music controls. On the Garmin side, the Garmin vivosmart 5 offers up to 7 days of battery and Garmin's Body Battery energy score, but it uses connected GPS, meaning it borrows your phone's GPS for outdoor workouts.

Google has also added a new option to the Fitbit line-up. The Fitbit Air, announced for New Zealand in May 2026, is a small screenless tracker. Google lists up to a week of battery life and 24/7 tracking of heart rate, heart rate variability, SpO2 and sleep stages, with everything viewed in the Google Health app rather than on your wrist. It suits people who want health and sleep data without another screen, but with no display you cannot check stats or notifications mid-workout the way you can on the Charge 6 or vivosmart 5. The Fitbit Air is not part of our range at the moment, so for a tracker you can read at a glance, compare the band-style options in our Smart Watches collection.

Verdict: For a tracker you can take on a run without your phone, the Charge 6 wins. If you always run with your phone anyway and prefer Garmin Connect's data layout, the vivosmart 5 is a sound choice. On a tighter budget, the Fitbit Inspire 3 covers steps, sleep and heart rate without GPS.

Everyday Smartwatches: Fitbit Versa 4 and Sense 2 vs Garmin Vivoactive 6

This is where most buyers land: a proper smartwatch screen, notifications and workout tracking in one device.

The Fitbit Versa 4 and Fitbit Sense 2 share a square design, built-in GPS and a battery life of 6+ days, confirmed on Google's Versa 4 specification page. The Sense 2 adds extra wellbeing sensors for stress and skin temperature trends. Both are comfortable, easy to read and strong on sleep insights, which has long been one of Fitbit's best features. The trade-off is that neither is aimed at serious training, and neither supports third-party watch apps in the way Garmin's Connect IQ store does.

The Garmin Vivoactive 6 is Garmin's direct answer. Garmin lists up to 11 days of battery life in smartwatch mode, an AMOLED display and wrist-based heart rate with Body Battery energy monitoring. It also supports phone-free music storage and contactless payments on supported cards. In practice, the Vivoactive 6 gives you noticeably more training detail after each workout, with a wide range of sport profiles and recovery guidance, while still looking at home with work clothes.

Verdict: Choose a Fitbit Versa 4 or Sense 2 if sleep and daily wellbeing are your main goals and you like the Google ecosystem. Choose the Vivoactive 6 if you want longer battery life, round-watch styling and more useful feedback from your workouts.

Serious Training: Garmin Has No Real Fitbit Rival

If you are training for a half marathon, a triathlon or multi-day tramps, this comparison becomes one-sided. Fitbit's current range stops at lifestyle smartwatches, while Garmin offers dedicated sport watches.

The Garmin Forerunner 265 is the standout for runners. On Garmin's Forerunner 265 page, the 46mm model is rated at up to 13 days in smartwatch mode and up to 20 hours in GPS mode, and it adds multi-band GPS, Training Readiness and a morning report that combines sleep, recovery and HRV status. For hiking and hunting, the rugged Garmin Instinct 3 Solar is built for rougher conditions.

Apps and Subscriptions: What You Pay After Purchase

Both brands now offer an optional paid tier, which is worth factoring into the real cost of ownership.

Fitbit: The basic Google Health app is free and covers activity, sleep and health tracking. Google Health Premium adds the Gemini-powered Google Health Coach, deeper sleep analysis and guided programmes. New and returning users are offered a trial when they set up the app.

Garmin: Garmin Connect remains free and includes the training, sleep and recovery data most owners rely on. When Garmin launched its optional Connect+ plan, the company's official announcement confirmed that all existing Garmin Connect features and data would remain free, with Connect+ adding extras such as AI-powered insights and expanded LiveTrack.

In short, you can get excellent value from either brand without subscribing, but Garmin's free tier has historically included more of its training analysis.

Which Should You Buy?

Choose Fitbit if you want a light, comfortable device for steps, sleep and general wellbeing, you are happy using a Google account, and you prefer a simple app over pages of data.

Choose Garmin if you run, cycle, swim or tramp regularly, you want longer battery life, or you want a watch that grows with you from casual workouts to structured training. Pairing a Garmin watch with a chest strap such as the Garmin HRM 200 also gives more accurate heart rate during intervals.

Keep in mind that fitness watches are wellbeing tools, not medical devices. Google notes on its specification pages that sensors such as SpO2 are not intended to diagnose or treat any medical condition, so speak to your GP about any health concerns.

Frequently Asked Questions

Is Garmin or Fitbit better for sleep tracking?

Both track sleep stages, heart rate and a nightly sleep score. Fitbit has a long reputation for clear, easy-to-understand sleep insights, while Garmin combines sleep with recovery metrics such as Body Battery and, on models like the Forerunner 265, Training Readiness. Either is a good choice; the slimmer Fitbit trackers are often more comfortable to wear overnight.

Do I need a subscription for a Garmin or Fitbit watch?

No. Both work without a subscription. Fitbit's optional Google Health Premium adds AI coaching and deeper insights, and Garmin's optional Connect+ adds extras, while all existing Garmin Connect features remain free.

Which lasts longer on a charge, Garmin or Fitbit?

Garmin generally lasts longer. The Vivoactive 6 is rated up to 11 days and the Forerunner 265 up to 13 days in smartwatch mode, compared with up to 7 days for the Fitbit Charge 6 and 6+ days for the Versa 4 and Sense 2. Real-world battery life depends on settings such as the always-on display and GPS use.

Does the Fitbit app still work in New Zealand?

Yes, through the Google Health app, which replaced the Fitbit app in May 2026. It works on compatible Android phones and iPhones and needs a Google account, as set out in Google's Google Health app setup requirements. New Zealand is also on Google's list of countries where Google Health Premium coaching is available. Your existing Fitbit data moves across when you switch.

Which is better for running, Garmin or Fitbit?

Garmin. Fitbit's Charge 6, Versa 4 and Sense 2 track runs with built-in GPS, but Garmin's Forerunner range adds features such as multi-band GPS, race-specific suggested workouts and detailed recovery guidance that dedicated runners will use.

Find Your Fitness Watch at Tech Supply Shed

The decision comes down to how you train. Fitbit is the easy, health-first choice for everyday wellbeing, and Garmin is the better long-term partner for anyone serious about sport or outdoor adventures. Browse the full range of Garmin and Fitbit models in our Smart Watches collection to compare colours, sizes and current pricing.