At a Glance: The Verdict
| Garmin Forerunner 265 | Polar Vantage M3 |
|---|---|
|
Best For: Runners who want the better all-around watch Our pick. It lasts 13 days between charges in smartwatch mode, has NFC payments, and connects over Wi-Fi, ANT+ and Bluetooth. It costs $449.99. |
Best For: Budget-minded runners who want ECG and long GPS sessions It gets 30 hours of GPS, adds ECG and skin temperature, and carries 32GB of storage. It costs $349.95, but it has no payments and only Bluetooth LE. |
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The Garmin Forerunner 265 and the Polar Vantage M3 both pair a bright AMOLED screen with multi-band GPS, and both are aimed at runners who want serious tracking without paying flagship money. They split on battery, connectivity, and price. Our pick is the Forerunner 265, with a clear case for the Vantage M3 if you run long and want to save $100.
Key Differences
- Smartwatch battery: The Forerunner 265 runs 13 days (312 hours). The Vantage M3 runs 7 days (168 hours).
- GPS battery: The Vantage M3 wins at 30 hours (1.2 days). The Forerunner 265 gets 20 hours (0.8 days).
- Payments: The Forerunner 265 has NFC payments. The Vantage M3 does not.
- Connectivity: The Forerunner 265 offers Bluetooth, ANT+, and Wi-Fi. The Vantage M3 offers Bluetooth LE only.
- Health sensors: The Vantage M3 adds ECG and skin temperature. The Forerunner 265 has a thermometer and Pulse Ox but no ECG.
- Storage: The Vantage M3 has 32GB. The Forerunner 265 has 8GB.
- Price: The Vantage M3 launched at $349.95. The Forerunner 265 launched at $449.99.
Deep Dive Comparison
Design & Comfort
The Forerunner 265 has a 46.1mm fiber-reinforced polymer case and weighs 47g. The Vantage M3 is smaller at 44.7mm but heavier at 53g, because it adds a stainless steel bezel to its polymer case. That 6g gap is small on the wrist, though the Garmin is the lighter watch for sleep tracking and long days. The Polar’s steel bezel looks more upscale, while the Garmin’s case is more purely sport.
The screens are close. The Forerunner 265 has a 1.3-inch AMOLED display and the Vantage M3 has a 1.28-inch AMOLED display, both at 416 x 416 pixels. You will not notice a sharpness difference. Water ratings are 5 ATM for the Garmin and WR50 (50m) for the Polar, which is the same practical protection for swimming and showers.
Battery Life
The two watches win in different situations. With everyday use and a few short workouts, the Forerunner 265 goes 13 days before it needs a charger, nearly double the Vantage M3’s 7 days. In pure GPS tracking, the order flips: the Vantage M3 holds 30 hours against the Garmin’s 20.
For most people, the Garmin’s lead matters more day to day, since you charge it about once every two weeks. The Polar’s GPS edge pays off if you run ultras or do long all-day hikes. A 20-hour GPS limit still covers a marathon many times over.
Health & Fitness Features
Both watches use multi-band GPS, which helps keep your route accurate near tall buildings and under tree cover. The Forerunner 265 adds SatIQ technology, which picks the best GPS mode for conditions, along with GLONASS and Galileo support. It also carries a barometric altimeter, compass, gyroscope, accelerometer, thermometer, ambient light sensor, and a Pulse Ox sensor for blood oxygen.
The Vantage M3 uses Polar’s Gen4 optical heart rate sensor and adds ECG, SpO2, and skin temperature, plus a barometer, compass, accelerometer, and gyroscope. ECG is the main health advantage here, and it is something the Forerunner 265 does not list. If a heart rhythm check matters to you, that is a real reason to pick the Polar.
Smart Features
This is the Garmin’s strongest category. The Forerunner 265 has NFC payments, so you can pay for coffee after a run without carrying a phone or wallet. It also connects over Bluetooth, ANT+, and Wi-Fi, which means it works with ANT+ sensors such as chest straps and bike power meters and can sync over Wi-Fi.
The Vantage M3 has no NFC payments and relies on Bluetooth LE alone. Neither watch has a built-in microphone or speaker. The Polar does give you 32GB of storage against the Garmin’s 8GB, which is a lot of extra room if you plan to load content onto the watch.
Price & Value
The Vantage M3 launched at $349.95 and the Forerunner 265 at $449.99, so the Polar starts $100 cheaper. For that money you get longer GPS battery, ECG, and four times the storage. You give up 6 days of smartwatch battery, NFC payments, ANT+, and Wi-Fi.
The Forerunner 265 is worth the extra $100 for most buyers because the features you lose with the Polar are ones you use every day: payments, sensor compatibility, and fewer charging sessions. Check current retail prices before buying, since both watches can sell below their launch prices.
Technical Specs Table
| Spec | Garmin Forerunner 265 | Polar Vantage M3 |
|---|---|---|
| Launch Price | $449.99 | $349.95 |
| Release Date | March 2, 2023 | October 23, 2024 |
| Case Size | 46.1mm | 44.7mm |
| Weight | 47g | 53g |
| Case Material | Fiber-reinforced polymer | Fiber-reinforced polymer with stainless steel bezel |
| Water Rating | 5 ATM | WR50 (50m) |
| Display | 1.3-inch AMOLED, 416 x 416 | 1.28-inch AMOLED, 416 x 416 |
| Battery (Smartwatch) | 312 hours (13 days) | 168 hours (7 days) |
| Battery (GPS) | 20 hours (0.8 days) | 30 hours (1.2 days) |
| GPS | Multi-band | Multi-band |
| Connectivity | Bluetooth, ANT+, Wi-Fi | Bluetooth LE |
| NFC Payments | Yes | No |
| Key Sensors | Elevate wrist heart rate, Pulse Ox, barometric altimeter, compass, gyroscope, accelerometer, thermometer, ambient light | Gen4 optical HR, ECG, SpO2, skin temperature, barometer, compass, accelerometer, gyroscope |
| Storage | 8GB | 32GB |
| Mic / Speaker | No | No |
The Verdict
The Garmin Forerunner 265 is the better watch for most runners. Its 13-day smartwatch battery, NFC payments, ANT+ and Wi-Fi support, and lighter 47g case make it easier to live with every day, and the extra $100 buys all of that.
Buy the Garmin Forerunner 265 if you want to charge once every couple of weeks, pay with your watch, or pair ANT+ sensors like a chest strap or bike power meter.
Buy the Polar Vantage M3 if you run long sessions that need up to 30 hours of GPS, want ECG, or want to save $100 and have 32GB of storage. You give up payments and Wi-Fi, and you will charge it about twice as often in everyday use.
Frequently Asked Questions
Which is better, the Garmin Forerunner 265 or the Polar Vantage M3?
The Garmin Forerunner 265 is better for most people. It lasts 13 days in smartwatch mode against 7 for the Polar, and it adds NFC payments, ANT+, and Wi-Fi. Pick the Vantage M3 only if long GPS battery, ECG, or a lower price matters more to you.
Which watch has better GPS battery life?
The Polar Vantage M3 does, at 30 hours of GPS versus 20 hours for the Garmin Forerunner 265. That gap only changes your plans for ultramarathons or very long hikes. For marathons and normal training, 20 hours is plenty.
Is the Garmin Forerunner 265 worth $100 more than the Polar Vantage M3?
Yes, for most buyers. The extra $100 gets you nearly twice the smartwatch battery, NFC payments, ANT+ sensor support, and Wi-Fi. The Polar is the better deal only if you will actually use its ECG and 32GB of storage, or if you need the longer GPS runtime.
Does either watch have ECG or a blood oxygen sensor?
The Polar Vantage M3 has ECG, SpO2, and skin temperature sensors. The Garmin Forerunner 265 has a Pulse Ox sensor for blood oxygen and a thermometer, but it does not list ECG. If you want an ECG on your wrist, choose the Polar.
Can I pay with my watch on either one?
Only on the Garmin Forerunner 265, which includes NFC payments. The Polar Vantage M3 has no NFC, so you will still need your phone or card at checkout. If you like leaving your wallet at home on a run, that settles it.
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Specs and features may change. Always verify details on the manufacturer’s official site before purchasing.
