COROS Apex 4 (46 mm)
Smartwatch · COROS app on a smartphone (Bluetooth)
- Cheapest price
- £361
- Subscription
- None
- Over 3 years
- £361
Prices
- Sigma Sports£361View at Sigma Sports (opens in a new tab)
- COROS£429View at COROS (opens in a new tab)
- AmazonAmazonFind it on Amazon (opens in a new tab)
We earn commission on some of these links. It never changes the order. Disclosure
What it measures
- Heart rate
- Resting heart rate
- HRV
- Sleep stages
- Blood oxygen (limited)
- VO2 max
- Skin temperature (limited)
- Readiness score
- ECG (limited)
- GPS
- Blood pressure (no)
As coros.com states it.
What it does
A 46 mm mountain sports GPS watch with a titanium bezel, sapphire glass and a memory-in-pixel touchscreen, with all-satellite dual-frequency GPS, downloadable maps and a speaker and microphone. It reads heart rate (optical and electrical) and blood oxygen, and syncs to the COROS app.
From the description on coros.com.
COROS Apex 4 (46 mm) specs
- Type
- Smartwatch
- Works with
- COROS app on a smartphone (Bluetooth)
- Battery
- Up to 24 days daily use (46 mm)
- Water resistance
- 5 ATM
- Size
- 46.2 x 46.2 x 13.7 mm
- Weight
- 64 g with silicone band, 51 g with nylon band
- Display
- 1.3 in third-generation memory-in-pixel touchscreen, 260 x 260 pixels
- Materials
- Sapphire glass, grade 5 titanium bezel, fibre-reinforced polymer cover, 24 mm quick-release band
- Sensors
- Optical heart rate, electrical heart rate sensor, optical pulse oximeter, barometric altimeter, accelerometer, gyroscope, 3D compass, thermometer, speaker, microphone
- GPS
- All-satellite dual-frequency (GPS, GLONASS, Galileo, BeiDou, QZSS)
- Connectivity
- Bluetooth (phone and accessories), Wi-Fi data sync
- Storage
- 32 GB
- Maps
- Downloadable global landscape and topo maps
- Sizes
- 46 mm and 42 mm
- Charging time
- Less than 2 hours
Further specs from coros.com.
How it compares
- To buy, it is the 34th cheapest of 67 smartwatches we compare (the middle one costs £361).
- Over three years, subscription included, it is the 34th cheapest of 67 smartwatches.
- It measures 3 of the 8 features we compare; the middle smartwatch measures 5.
- It needs no subscription; 0 of the 67 do.
COROS Apex 4 (46 mm) reviews and discussions
Reviews
- DC Rainmaker review of the COROS Apex 4 (46 mm) 2025-10
- Tom's Guide review of the COROS Apex 4 (46 mm) 2025-10
Which?
- Which? tests of this kind of product members' content
Links to other sites' reviews and discussions; we do not run them and they are not ours.
Questions
- Where is the COROS Apex 4 (46 mm) cheapest?
- Sigma Sports, at £361 when checked on 2026-10-29.
- Does the COROS Apex 4 (46 mm) need a subscription?
- No subscription.
- What does the COROS Apex 4 (46 mm) cost over three years?
- £361, the price plus any required subscription.
- How does the COROS Apex 4 (46 mm) compare with other smartwatches?
- To buy, it is the 34th cheapest of 67 smartwatches we compare (the middle one costs £361). Over three years, subscription included, it is the 34th cheapest of 67 smartwatches. It measures 3 of the 8 features we compare; the middle smartwatch measures 5.
Compare with
- 1
- 3 years
- £357
- Price
- £357
- Subscription
- Optional
- 2
- 3 years
- £369
- Price
- £369
- Subscription
- Optional
- 3
- 3 years
- £369
- Price
- £369
- Subscription
- Optional
Readings are not a diagnosis. If you are worried about your health, speak to your GP, pharmacist or NHS 111. How we earn.