Coros PACE 4 vs Coros PACE Pro
These two are very similar: both have AMOLED screens, built-in GPS and Coros software. The main difference: the PACE Pro has the bigger screen: 1.3 in against 1.2 in.
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Key differences
-
Battery life
Evenly matched
Similar battery life: up to 19 days and 20 days.
-
GPS
Evenly matched
Both have built-in GPS with similar features.
-
Display
PACE Pro wins
Both are AMOLED, but the Coros PACE Pro's screen is bigger (1.3 in against 1.2 in).
-
Health
Evenly matched
Much the same health sensors.
-
Weight
PACE 4 wins
The Coros PACE 4 is lighter: 32 g against 37 g.
Other differences
- Screen size PACE Pro wins
The PACE Pro has the bigger screen: 1.3 in against 1.2 in.
Which one should you choose?
Choose the PACE 4 if…
- You want it to slide under a sleeve: it's 11.8 mm thick.
- You work out with music: it stores songs on the watch.
- You want to wear it day and night: it weighs just 32 g.
Choose the PACE Pro if…
- You want maps and stats easy to read: it has the bigger screen.
- You prefer its look and app: it covers the same essentials as the PACE 4.
Full spec comparison
On the specs both makers publish, these two are closely matched.
Green cells with a ✓ mark the better spec in that row. Tick "Show differences only" to hide the rows where they match.
Overview
| Spec | Coros PACE 4 | Coros PACE Pro |
|---|---|---|
| Brand | Coros | Coros |
| Series | PACE | PACE |
| Released | 2025-11 | — |
| Replaces | PACE 3 | — |
| Colours | Black Crystal, Cloud White | — |
Platform & apps
Both work with the same phones and software.
| Spec | Coros PACE 4 | Coros PACE Pro |
|---|---|---|
| Operating system | Coros | Coros |
| Works with | — | iPhone and Android |
| Chipset | — | Ambiq Apollo510 |
| Storage | 4 GB | — |
Display
The PACE Pro is ahead on the display.
It has a bigger screen, and the PACE 4 doesn't beat it on anything here.
| Spec | Coros PACE 4 | Coros PACE Pro |
|---|---|---|
| Display type | AMOLED | AMOLED |
| Display name | AMOLED | — |
| Screen size | 1.2 in | 1.3 in |
| Resolution | 390 x 390 | 416 x 416 |
| Pixel density | 460 ppi | — |
| Peak brightness | — | 1,500 nits |
| Colour display | Yes | Yes |
| Always-on display | Yes | Yes |
| Touchscreen | Yes | Yes |
| Controls | touchscreen, crown, buttons, action button | touchscreen, buttons, crown |
Design & durability
The PACE 4 is ahead on size and durability.
It is slimmer, and the PACE Pro doesn't beat it on anything here.
| Spec | Coros PACE 4 | Coros PACE Pro |
|---|---|---|
| Case sizes | 43.4 mm | — |
| Dimensions | 43.4 x 43.4 x 11.8 mm | — |
| Thickness | 11.8 mm | 14.5 mm |
| Weight (case) | 32 g | 37 g |
| Weight with band | 40 g | 37 g |
| Case material | Fiber Reinforced Polymer | — |
| Bezel material | 6000 Series Aluminum Alloy | — |
| Lens | Mineral Glass | — |
| Back material | Fiber Reinforced Polymer | — |
| Band material | Silicone / Nylon | Nylon |
| Band width | 22 mm | — |
| Band fitting | Quick Release | — |
| Fits wrists | 130-215 mm | — |
| Water resistance | 5 ATM | 5 ATM |
| Operating temperature | -20 to 50 °C | — |
Battery
Battery life is close on both.
How you use the screen, GPS and notifications will matter more than the difference between them.
| Spec | Coros PACE 4 | Coros PACE Pro |
|---|---|---|
| Battery (smartwatch mode) | 19 days | 20 days |
| Battery (multi-band GPS) | 31 hours | 31 hours |
| All battery modes | Smartwatch: 19 days; Always-on display: 6 days; All satellite systems: 41 hours; Multi-band GPS: 31 hours; Multi-band GPS + music: 12 hours | Smartwatch: 20 days; Always-on display: 6 days; All satellite systems: 38 hours; Multi-band GPS: 31 hours |
| Battery type | — | Li-ion |
| Charging | USB-C | USB-C |
| Full charge time | 120 min | — |
GPS & navigation
Both have built-in GPS with similar capabilities.
| Spec | Coros PACE 4 | Coros PACE Pro |
|---|---|---|
| GPS | Built-in | Built-in |
| Multi-band GPS | Yes | Yes |
| Satellite systems | GPS, GLONASS, Galileo, BeiDou, QZSS | — |
| Maps | Downloadable maps | Downloadable maps |
| Navigation features | Checkpoint, back-to-start, Deviation Alert, Touchscreen-Enabled Map Control, Safety Alerts | turn-by-turn |
Health & sensors
Both track much the same health data.
Heart rate, sleep and the extra sensors line up closely.
| Spec | Coros PACE 4 | Coros PACE Pro |
|---|---|---|
| Sensors | optical HR, SpO2, skin temperature, accelerometer, gyroscope, barometer, compass, thermometer | optical HR, SpO2 |
| Heart-rate variability | Yes | — |
| Blood oxygen (SpO2) | Yes | Yes |
| Skin temperature | Yes | — |
| Sleep tracking | Sleep stages | Basic |
| Stress tracking | Yes | Yes |
| Cycle tracking | Yes | — |
Training
Training features are evenly matched.
| Spec | Coros PACE 4 | Coros PACE Pro |
|---|---|---|
| Triathlon / multisport | Yes | — |
| Underwater heart rate | Yes | — |
| Training metrics | VO2 max, training load, race predictor, recovery time, lactate threshold, HRV status | training status, race predictor, recovery time |
| Adaptive coaching | Yes | — |
| External sensors | Bluetooth sensors | Bluetooth HR strap, foot pod |
Smart features
Both offer much the same smart features.
| Spec | Coros PACE 4 | Coros PACE Pro |
|---|---|---|
| Notifications | Yes | Yes |
| Microphone | Yes | — |
| Music storage | Yes | — |
| Wi-Fi | Wi-Fi | — |
| Bluetooth | — | Bluetooth 5.0 |
| Find my phone | Yes | Yes |
| Find my watch | Yes | — |
Diving, golf & more
Neither has a specialist edge here.
| Spec | Coros PACE 4 | Coros PACE Pro |
|---|---|---|
| Specialist modes | road running, trail running, cycling, climbing, fishing | — |
| Diving | None | — |