The Polar G1 GPS sensor is a compact, reliable tracking device designed for fitness enthusiasts and outdoor adventurers who need accurate location and speed data during their activities. While Polar is best known for its heart rate monitors, the G1 GPS sensor fills an important niche by providing standalone GPS functionality that pairs seamlessly with compatible Polar watches and third-party devices. Whether you’re logging runs, cycling routes, or hiking trails, this sensor ensures your movements are tracked with precision—even in challenging environments like dense forests or urban canyons.
Quick Product Comparison
Our Top 5 Polar G1 Gps Sensor Reviews – Expert Tested & Recommended
1. G
This compact GPS sensor delivers rock-solid performance for anyone needing reliable location and speed tracking. With its strong 3M adhesive backing, it stays firmly attached to dash cams or gear, making it ideal for drivers who want proof of their vehicle’s movements.
Key Features That Stand Out
✓ External GPS antenna for superior satellite signal reception
✓ Strong 3M adhesive ensures secure mounting on any surface
✓ Plug-and-play setup with compatible dash cameras
✓ Compact design doesn’t interfere with daily use
✓ Reliable performance in urban and rural environments
Why We Recommend It
Despite not being a Polar-branded GPS unit, this sensor fills the gap left by the discontinued Polar G1 GPS sensor perfectly. It’s simple, durable, and works exactly as advertised—no setup headaches or connectivity issues.
Best For
Drivers using dash cams like Blackvue who need accurate GPS logging for speed and location verification.
Pros and Cons
Pros:
- Easy installation with strong adhesive
- Consistently accurate GPS data
- Works seamlessly with popular dash cam models
- Affordable compared to built-in GPS alternatives
Cons:
- Not officially branded by Polar
- Limited compatibility outside dash cam ecosystems
Customer Reviews
Customer Review: “Works great. Plug in and ready to go with X590 unit. Adhesive has been on with no issue for a few months now.”
Customer Review: “Added this to ensure accurate time and speed. Wish Blackvue just included GPS on this model but since they didn’t I had to get this. It works as advertised.”
2. Polar H7 Bluetooth Smart Heart Rate Sensor
The Polar H7 is a classic chest strap heart rate monitor that pairs effortlessly with smartphones and fitness apps via Bluetooth Smart. While it doesn’t include GPS, it’s often used alongside GPS-enabled devices to provide comprehensive workout data.
Key Features That Stand Out
✓ ECG-accurate heart rate monitoring
✓ Bluetooth Smart connectivity for real-time app syncing
✓ Compatible with iPhone, iPad, iPod Touch, and Android devices
✓ User-replaceable battery extends lifespan
✓ Lightweight and comfortable for extended wear
Why We Recommend It
If you’re looking for a reliable, no-frills heart rate sensor that integrates smoothly with Polar Beat and other training apps, the H7 remains a solid choice—even years after its release.
Best For
Beginners and casual athletes who want accurate heart rate data without breaking the bank.
Pros and Cons
Pros:
- Highly accurate readings
- Broad device compatibility
- Affordable entry point into Polar ecosystem
- Easy battery replacement
Cons:
- No ANT+ support (Bluetooth only)
- Strap may feel basic compared to newer models
Customer Reviews
Customer Review: “I read some of the bad reviews about this and was a little worried but ordered it anyways because overall the rating was around 4/5. And all I can say is that it was a great purchase and I should have never hesitated. This is my first HRM and first Polar product.”
Customer Review: “Both my husband and I use these with the Polar FT7 watch for a wrist display we can check during runs and Runkeeper for data tracking, and we love them. I have tachycardia (POTS) and it’s important for me to both exercise frequently and monitor my heart rate while doing so…”
3. Polar H10 Heart Rate Monitor Chest Strap – ANT + Bluetooth, Waterproof HR Sensor for Men and Women
The Polar H10 is widely regarded as one of the most accurate consumer heart rate sensors available. With dual connectivity (ANT+ and Bluetooth), it works with virtually any fitness device—and while it lacks built-in GPS, it pairs excellently with GPS watches for full activity tracking.
Key Features That Stand Out
✓ Dual-band transmission (ANT+ and Bluetooth)
✓ Waterproof design for swimming and sweat-heavy workouts
✓ Superior electrode contact for consistent readings
✓ Compatible with Polar Flow, Garmin, Strava, and more
✓ Replaceable battery with long life
Why We Recommend It
For serious athletes or anyone needing medical-grade accuracy without clinical equipment, the H10 is unmatched in its price range. It’s durable, precise, and future-proof thanks to dual-protocol support.
Best For
Triathletes, runners, and gym-goers who demand top-tier heart rate data across multiple platforms.
Pros and Cons
Pros:
- Industry-leading accuracy
- Works with almost every fitness platform
- Robust, sweat-resistant build
- Great for interval training and zone-based workouts
Cons:
- Battery drains faster if not removed after use
- Higher price than entry-level straps
Customer Reviews
Customer Review: “Bought this to replace a crappy Garmin chest strap. So far this thing beats it every single way possible. I’ll give a little bit of a comparison below as to how it stacks up to the Garmin HRM dual.”
Customer Review: “UPDATE after one year: Over time, the unit started to eat through batteries MUCH faster. No idea why. As an experiment, I tried removing the battery after each use, and this solved the problem.”
4. POLAR OH1 + Waterproof Optical Heart Rate Monitor with Goggle Strap Clip and Armband – HR Monitor…
The Polar OH1+ offers freedom from chest straps with its optical sensor that clips onto goggles or wraps around your arm. It’s waterproof, versatile, and great for swimmers or those who find chest straps uncomfortable—though it doesn’t include GPS functionality.
Key Features That Stand Out
✓ Optical heart rate sensing from arm or temple
✓ Includes goggle clip and soft armband
✓ Waterproof up to 30 meters
✓ Syncs with Polar Flow, Strava, Apple Health, and more
✓ Rechargeable battery with 12+ hour life
Why We Recommend It
If you’re a swimmer, triathlete, or just hate the feel of chest straps, the OH1+ provides a comfortable alternative with surprisingly reliable readings—especially during steady-state activities.
Best For
Open-water swimmers, triathletes, and users seeking strap-free heart rate monitoring.
Pros and Cons
Pros:
- No chest strap required
- Excellent for swimming and water sports
- Comfortable and lightweight
- Good battery life
Cons:
- Less accurate during high-intensity intervals
- Optical sensors can lag behind actual HR changes
Customer Reviews
Customer Review: “UPDATE: I was ultimately able to get in touch with Polar. Mailed the monitor back to them and got it back fairly quickly. Not sure whether they repaired my defective one or replaced it. Have had no issues since the warranty honored…”
Customer Review: “This piece of technology lasts and it’s a great way of measuring you HR and tracking calories if you’re into weight loss. Better than a Fitbit and sleeker also.”
5. Polar H9 Heart Rate Sensor
The Polar H9 is a budget-friendly chest strap that delivers reliable heart rate data for everyday workouts. It supports Bluetooth and works with popular apps, though it lacks ANT+ and advanced features found in higher-end models.
Key Features That Stand Out
✓ Affordable entry into Polar’s HR monitoring ecosystem
✓ Bluetooth connectivity for app synchronization
✓ Comfortable textile strap with adjustable fit
✓ Compatible with Polar Beat, Strava, and Zwift
✓ Easy setup and intuitive use
Why We Recommend It
For casual exercisers or those upgrading from wrist-based HR monitors, the H9 offers a significant accuracy boost at a very reasonable price—making it a smart starter option.
Best For
Beginners, home workout enthusiasts, and budget-conscious users wanting reliable heart rate tracking.
Pros and Cons
Pros:
- Very affordable
- Comfortable strap design
- Easy integration with fitness apps
- Solid battery life
Cons:
- No ANT+ support
- Strap may slip on broader torsos
- Basic build quality compared to H10
Customer Reviews
Customer Review: “The strap sucks. If you have no lats, maybe it won’t slide down your body as you run. But for those of us with big lats, you have to modify this thing.”
Customer Review: “I’ve only owned this for about 2 months now, with about 3 – 4 hours of intense sweat contact per week. But my impressions so far it’s better than Garmin HRM Dual that lasted around 1.5 year with similar use pattern.”
Complete Buying Guide for Polar G1 Gps Sensor
Essential Factors We Consider
When evaluating GPS sensors like the original Polar G1—or alternatives that serve similar purposes—we focus on signal accuracy, battery life, compatibility, ease of use, and durability. Since the Polar G1 is discontinued, we also consider whether third-party options can reliably fill its role, especially for users of Polar watches or dash cams. Key questions include: Does it maintain lock in dense urban areas? Can it sync seamlessly with your existing gear? Is it built to last through daily exposure to weather and movement?
Budget Planning
Prices for GPS sensors and complementary heart rate monitors vary widely. The Polar H9 starts under $60, while the H10 sits around $90. If you’re looking for a dedicated GPS add-on (like the G1 was), expect to spend $40–$80 for a quality external module. Always factor in long-term value: a slightly pricier device with better battery life or broader compatibility often saves money over time.
Final Thoughts
While the Polar G1 GPS sensor is no longer in production, its legacy lives on through versatile alternatives and complementary Polar wearables. Whether you need GPS for legal documentation (via dash cam) or athletic tracking (via heart rate straps paired with GPS watches), there’s a solution here for every need and budget.
Frequently Asked Questions
Q: Is the Polar G1 GPS sensor still available?
A: No, the Polar G1 GPS sensor has been discontinued by Polar. However, third-party GPS receivers like the one listed above can serve similar functions, especially when used with compatible dash cameras or fitness devices.
Q: Can I use a Polar heart rate monitor without GPS?
A: Absolutely! Polar heart rate sensors like the H7, H9, H10, and OH1+ provide accurate HR data independently. For full workout tracking including pace and route, pair them with a GPS-enabled watch or smartphone app.
Q: Which Polar sensor is best for swimming?
A: The Polar OH1+ is your best bet for swimming, as it’s waterproof up to 30 meters and can be worn on the arm or clipped to goggles. Chest straps like the H10 are also waterproof but may be less comfortable in the water.
Q: Do these sensors work with non-Polar devices?
A: Yes! Most Polar sensors support Bluetooth and/or ANT+, making them compatible with Garmin, Apple Watch, Strava, Zwift, and many other platforms.
Q: How often do I need to replace the battery?
A: Battery life varies: the H7 and H10 use user-replaceable CR2025 batteries lasting 400+ hours. The OH1+ has a rechargeable battery that lasts 12+ hours per charge. Always remove batteries from chest straps after use to extend life.
Ready to upgrade your fitness tracking or vehicle monitoring setup? Whether you’re searching for a Polar G1 GPS sensor alternative or a high-performance heart rate monitor, our top picks offer proven reliability and real-world value. Don’t wait—click any “Check Price” button above to find the perfect match for your active lifestyle today!
