What is SpO2, and why is it important?

SpO2 stands for peripheral capillary oxygen saturation, which measures the amount of oxygen in your blood. It's important because it indicates how efficiently your lungs are delivering oxygen to your body, a vital sign for overall health.

How accurate is GPS on smartwatches?

Smartwatch GPS accuracy is generally high, but it can be affected by factors like tall buildings, dense tree cover, or poor satellite signal. Dual-frequency GPS improves accuracy by filtering out these errors.

4 Top Smartwatches with Built-in GPS & SpO2

For fitness enthusiasts, this article highlights 4 best fitness smartwatches for 2025 that combine built-in GPS and SpO2 tracking. Models like the Mi Watch Revolve Active and Amazfit Balance offer accurate health monitoring, including blood oxygen levels, and reliable GPS for tracking runs and outdoor activities without a phone. Let’s explore!

By : Srishty Singh
Last Updated on Aug 23, 2025 13:00 IST
Published on Aug 23, 2025 13:00 IST

4 Top Smartwatches with Built-in GPS & SpO2

Modern smartwatches have evolved far beyond a simple notification device, becoming an indispensable tool for health and fitness tracking. For those serious about their well-being and outdoor activities, two features stand out as non-negotiable: built-in GPS and a blood oxygen (SpO2) sensor. Built-in GPS provides accurate, phone-free tracking for runs, hikes, and bike rides, while the SpO2 sensor offers crucial insights into blood oxygen saturation, a key indicator of respiratory and overall health, especially during sleep and high-altitude activities.

Our curated list of top picks provides an in-depth look at 4 of the best smartwatches on the market in 2025 that masterfully integrate these two vital technologies, offering a powerful blend of navigation, health monitoring, and everyday convenience.

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Top 4 Smartwatch Models Comparison and Reviews on Amazon

Feature	Mi Watch Revolve Active	Amazfit Balance	Fire-Boltt Expedition	Samsung Galaxy Watch 7
Display	1.39" AMOLED	1.5" HD AMOLED	1.39" HD TFT	1.3" or 1.5" Super AMOLED
GPS	Built-in, with GPS, GLONASS, Galileo, BDS	Dual-band with 6 satellite systems and offline maps	Built-in	Dual-Frequency GPS (L1+L5)
SpO2	Yes, Blood Oxygen Monitor	Yes, Blood Oxygen Saturation Monitoring	Yes, SpO2 sensor	Yes, Blood Oxygen Monitor
Battery Life	Up to 14 days (typical use)	Up to 14 days (typical use), up to 25 days (battery saver)	Up to 7 days (typical use)	Up to 50 hours (typical use)
Water Resistance	5ATM	5ATM	IP67	IP68 & 5ATM
OS	Proprietary OS	Zepp OS	Proprietary OS	Wear OS
Calling	Notification only	Bluetooth Calling	Bluetooth Calling	Bluetooth Calling / LTE models
Other Key Features	117 sports modes, VO2 Max, Alexa built-in	AI-powered health and fitness tracking, Zepp Flow AI assistant, Zepp Pay	120+ sports modes, rugged design, AI Voice Assistant	Exynos W1000 chip, Galaxy AI features, new gestures
Amazon Review	Buyer, Prasanna Kumar ys on 29 June 2021, said, It looks premium, Excellent display, Easy UI and spoilt for fitness options. Tracking of basic details is pretty neat and accurate. Alexa works well, too.	On 12 January 2025, Nihir Shah mentioned, the Amazfit Balance is a stylish and feature-rich wearable that excels in several areas, while also having some minor drawbacks.	A buyer, Chetan Punjani, said the display quality is not good, and another user, Kunu Nayak, mentioned, overall it is a good purchase. So, it has mixed reviews.	Ambar Mutalik wrote a review on 12 June 2025 and said it has a refined design and smooth performance. Go for it if you want the ultimate Android smartwatch experience.
Best For	Budget-conscious users & fitness enthusiasts	Health and wellness-focused individuals	Affordable & rugged smartwatch	Most advanced features

Also Read: Top 4 Sweat-Resistant Smartwatches from the Range of the Scout

Here are the 4 best fitness smartwatches with feature details, use, benefits, specifications, and users’ feedback.

Top Four Products

Mi Watch Revolve Active
Take your fitness to the next level with the Mi Watch Revolve Active. Featuring a vibrant 1.39" AMOLED display and a lightweight, sleek design, this smartwatch is perfect for all-day wear. This smartwatch with accurate GPS and blood oxygen, continuous heart rate monitoring, and advanced sleep analysis.
With built-in GPS and 117 different sports modes, you can leave your phone behind and still get precise data on your runs, swims, and hikes. Enjoy a two-week battery life, Alexa built-in for smart convenience, and the ability to control your music and camera right from your wrist.
Specifications:
- Operating System: Android
- Series: ‎Mi Watch Revolve Active
- Colour: ‎Black
- Connectivity Technology: Bluetooth, GPS
- Wattage: ‎3.8 Watts
Reasons to Buy:
- Comprehensive fitness tracking
- Value for money
- Alexa Built-in
Reason to Avoid:
- The battery drains fast with heavy use
01
Amazfit Balance 46mm AMOLED Smart Watch
The Amazfit Balance is one of the top smartwatches for runners with GPS and SpO2 tracking. It is a sleek 46mm smartwatch that combines elegant design with powerful wellness technology. The stunning 1.5-inch AMOLED display provides crystal-clear visuals, while the AI-powered Zepp Coach helps you train smarter, not harder, with personalised workout plans.
Accurately track your progress with dual-band GPS, body composition analysis, and a suite of health sensors, including SpO2 and temperature. With Bluetooth calling and an incredible 14-day battery life, the Amazfit Balance is your perfect partner for a balanced and healthy life.
Specifications:
- Operating System: Android
- Model Name: ‎Balance
- Battery Capacity: 470
- Resolution: ‎480 x 480
- Connectivity Technology: Bluetooth
- Display Type: ‎AMOLED
- Wattage: ‎1.05 Watts
- Battery Average Life: ‎14 Days
Reasons to Buy:
- Long battery life
- Advanced health and AI coaching
- High-accuracy GPS
Reason to Avoid:
- The Zepp OS may not be as feature-rich or customisable as other smartwatch platforms like Wear OS.
02
Fire-Boltt Expedition Smartwatch
Fire-Boltt Expedition smartwatch is a rugged and feature-packed timepiece that is designed for the adventurer in you. Its vibrant 1.39" full-touch display with a stunning 360x360 pixel resolution ensures crystal-clear visuals, even in bright sunlight. With this accurate GPS smartwatch with SpO2, you can navigate your trails & health and track your runs with precision, leaving your phone behind.
Stay connected on the move with Bluetooth calling, and choose from over 100 sports modes to monitor any activity. Built to withstand the elements, this smartwatch with GPS and SpO2 has a rugged design and IP67 water resistance, making it the perfect companion for any expedition.
Specifications:
- Operating System: Smartwatch
- Model Name: ‎EXPEDITION
- Resolution: ‎360 x 360
- Connectivity Technology: Bluetooth
- Display: OLED
- Wattage: ‎300 Watts
Reasons to Buy:
- Rugged build
- Affordable price tag
- Hands-free calling option
Reason to Avoid:
- Display quality is not so good
03
Samsung Galaxy Watch 7
Looking for a smartwatch with SpO2 monitoring for sleep apnea? Meet the Samsung Galaxy Watch 7, a perfect blend of power and advanced wellness tracking. Encased in durable Armour Aluminum with a scratch-resistant Sapphire Glass display, this 44mm smartwatch in a striking green finish is ready for any adventure. Its new 3nm processor delivers a supercharged performance, making navigation and app-switching effortless.
With dual-frequency GPS and an upgraded BioActive sensor, it offers precise location tracking and a comprehensive suite of health monitors, including SpO2, ECG, and blood pressure (requires calibration). The addition of Galaxy AI provides personalised insights, helping you achieve your wellness goals more effectively.
Specifications:
- Operating System: Smartwatch
- Model: ‎Samsung Galaxy Watch 7
- Memory Storage Capacity: 32 GB
- Battery Capacity: 1500 Amp Hours
- Memory: 32 GB
- Resolution: ‎480 x 480
- Display: ‎AMOLED
Reasons to Buy:
- Powerful performance and advanced features
- Rebust build and premium display
- Dual GPS
Reason to Avoid:
- Ecosystem Lock-in
04

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Faq's

What is SpO2, and why is it important?
+
SpO2 stands for peripheral capillary oxygen saturation, which measures the amount of oxygen in your blood. It's important because it indicates how efficiently your lungs are delivering oxygen to your body, a vital sign for overall health.
How accurate is GPS on smartwatches?
+
Smartwatch GPS accuracy is generally high, but it can be affected by factors like tall buildings, dense tree cover, or poor satellite signal. Dual-frequency GPS improves accuracy by filtering out these errors.

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