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Polar Vantage M3

Smartwatch · Polar Flow app on Android and iPhone

Cheapest price
£349
Subscription
Optional
Over 3 years
£349

Prices

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What it measures

As polar.com states it.

What it does

A multisport watch with an AMOLED touchscreen, dual-frequency GPS and pre-installed offline maps, worn on the wrist and synced to the Polar Flow app, where it records heart rate, sleep and training.

From the description on polar.com.

Polar Vantage M3 specs

Type
Smartwatch
Works with
Polar Flow app on Android and iPhone
Battery
Up to 7 days (smartwatch mode)
Water resistance
WR50
Size
44.7 x 44.7 x 12.2 mm
Weight
53 g, 35 g without wristband
Display
1.28 in AMOLED touchscreen, 416 x 416 pixels, always-on
Materials
Gorilla Glass 3, glass-fibre-reinforced plastic case, stainless steel bezel
GPS
GPS, GLONASS, Galileo, BeiDou, QZSS; dual-frequency (L1/L5)
Connectivity
Bluetooth LE (ANT+ not supported)
Storage
32 GB
Maps
North America and Europe pre-installed, others free in Polar Flow
Charging
Proprietary USB-C cable
Guarantee
2 years

Further specs from polar.com.

How it compares

All smartwatches, ranked by cost over three years

Polar Vantage M3 reviews and discussions

Reviews

Which?

Links to other sites' reviews and discussions; we do not run them and they are not ours.

Subscription
  • Polar Fitness Program optional.
  • Adds: Adaptive workout plans; Polar states 9.99 euros a month or local equivalent
  • Source: support.polar.com
Questions
Where is the Polar Vantage M3 cheapest?
First Class Watches, at £349 when checked on 2026-10-29.
Does the Polar Vantage M3 need a subscription?
Polar Fitness Program optional. It adds: Adaptive workout plans; Polar states 9.99 euros a month or local equivalent
What does the Polar Vantage M3 cost over three years?
£349, the price plus any required subscription.
How does the Polar Vantage M3 compare with other smartwatches?
To buy, it is the 31st cheapest of 67 smartwatches we compare (the middle one costs £361). Over three years, subscription included, it is the 31st cheapest of 67 smartwatches. It measures 6 of the 8 features we compare; the middle smartwatch measures 5.

Compare with

  1. 1

    Apple Watch Series 11 (46 mm, GPS)

    Smartwatch · battery up to 24 hours

    • HRV
    • Sleep stages
    • Blood oxygen
    • Skin temperature
    • ECG
    3 years
    £349
    Price
    £349
    Subscription
    Optional
  2. 2

    Samsung Galaxy Watch9 (40 mm, Bluetooth)

    Smartwatch · battery up to 40 hours

    • HRV
    • Sleep stages
    • Blood oxygen
    • Skin temperature
    • ECG
    3 years
    £349
    Price
    £349
    Subscription
    None
  3. 3

    Huawei Watch D2

    Smartwatch · battery up to 6 days typical

    • HRV
    • Blood oxygen
    • Skin temperature
    • ECG
    • Blood pressure
    3 years
    £349.99
    Price
    £349.99
    Subscription
    Optional

All smartwatches

Readings are not a diagnosis. If you are worried about your health, speak to your GP, pharmacist or NHS 111. How we earn.