Fitness watches · Model guide · Maker specs
COROS PACE 4
Get COROS PACE 4 for an AMOLED screen and downloadable maps at $249: it still runs 41 hours with all satellite systems and 19 days between charges.
In short
Get COROS PACE 4 for an AMOLED screen and downloadable maps at $249: it still runs 41 hours with all satellite systems and 19 days between charges. With the screen always on, that drops to 30 hours and 6 days. It weighs 32 grams on nylon, 33 with the $279 aluminum bezel. Skip it if you need ECG or 32GB (PACE Pro) or want to spend less (PACE 3, $199).
Product images
COROS PACE 4, from its Amazon listing.
Credit: Amazon.com (Associates Program). Amazon listing
Product image from the Amazon listing.
Who it is for
- Runners who want a color AMOLED screen without a big case. PACE 4 is 43.4mm across and 11.8mm thick.
- Hikers and trail runners who want real maps. It downloads landscape maps with trail and street names, plus topo maps, with checkpoints, back-to-start and off-route alerts on top.
- Runners who want quick controls: an action button for shortcuts and Pins, and a microphone for voice commands, training logs and Voice Pins.
Who should skip it
- Anyone who wants ECG or a lot of storage. PACE 4 has 4GB and no electrocardiogram sensor; PACE Pro has 32GB and ECG in a 46mm case.
- Buyers watching every dollar. PACE 3 costs $199; it trades the AMOLED screen for a Memory LCD and follows routes as a breadcrumb line instead of a map.
- Divers. Swimming is fine, but COROS says the 5 ATM rating isn't for diving.
What sets it apart
- A 1.2-inch, 390 × 390 AMOLED touchscreen that can stay on.
- Up to 41 hours of GPS with all satellite systems, three more than PACE Pro's 38, and 31 in Max Dual Frequency.
- 19 days between charges with sleep tracking, and a full charge in under 2 hours.
- A choice of bezels: fiber-reinforced polymer at $249 or 6000-series aluminum at $279, with the same screen, battery and storage.
Caveats
- Playing offline music shortens GPS time sharply: 14 hours in High All-Systems and 12 in Max Dual Frequency.
- You can't pay with it: COROS lists no NFC payments for PACE 4, and no cellular option.
Key specs
In the same order on every watch page, so you can compare models.
| Spec | Value | Source and notes |
|---|---|---|
| Display size | 1.2 inches | COROS PACE 4 specs (US) |
| Display type | Always-on touchscreen AMOLED; mineral glass; fiber-reinforced polymer or 6000-series aluminum bezel with a polymer cover | COROS PACE 4 specs (US) |
| Display resolution | 390 × 390 pixels | COROS PACE 4 specs (US) |
| Always-On display | Yes; daily use drops to 6 days with it on | COROS PACE 4 specs (US) |
| Case size(s) | One size: 43mm class (43.4mm), with two bezel options | COROS PACE 4 specs (US) |
| Case material | Fiber-reinforced polymer bezel and cover, or 6000-series aluminum bezel with a polymer cover; mineral glass | COROS PACE 4 specs (US) |
| Case dimensions | 43.4 × 43.4 × 11.8mm (height excludes the optical heart-rate sensor) | COROS PACE 4 specs (US) |
| Weight | Polymer: 40 g with silicone band, 32 g with nylon. Aluminum: 41 g with silicone, 33 g with nylon | COROS PACE 4 specs (US) |
| Finishes | Fiber-reinforced polymer bezel ($249) or 6000-series aluminum bezel ($279); colors not listed | COROS PACE 4 specs (US) |
| On-device storage | 4GB; about 1,200 hours of activity data (COROS estimate for outdoor activities) | COROS PACE 4 specs (US) |
| Battery, normal use | 19 days of daily use and sleep tracking; 6 days with the always-on display | COROS PACE 4 specs (US) |
| Battery, saver mode | None named for PACE 4 | COROS PACE 4 specs (US) |
| Battery, GPS workouts | High All-Systems: 41 hours (30 with always-on); 14 with offline music. Max Dual Frequency: 31 hours (24 with always-on); 12 with offline music. Standard Full GPS: not rated | COROS PACE 4 specs (US) |
| Charging | Full charge in under 2 hours | COROS PACE 4 specs (US) |
| Water resistance | 5 ATM; surface water activities only, not diving | COROS PACE 4 specs (US) |
| GNSS / GPS | GPS, GLONASS, Galileo, BeiDou and QZSS; all-satellite dual-frequency chipset | COROS PACE 4 specs (US) |
| Cellular | None listed; Bluetooth link to your phone | COROS PACE 4 specs (US) |
| Heart rate | Optical heart-rate sensor (COROS: may not work over tattoos); resting heart rate | COROS PACE 4 specs (US) |
| Blood oxygen (SpO2) | Optical pulse oximeter | COROS PACE 4 specs (US) |
| Temperature sensing | Thermometer; body temperature during training needs a compatible accessory | COROS PACE 4 specs (US) |
| ECG | No ECG sensor listed | COROS PACE 4 specs (US) |
| Sleep tracking | Sleep tracking with REM; counted in the daily-use battery rating | COROS PACE 4 specs (US) |
| Training features | EvoLab (recovery, fatigue, training load, race predictor, VO2 max, threshold zones); Effort Pace; interval training; training plans; running form test | COROS PACE 4 specs (US) |
| Other sensors | Microphone (voice commands, training logs, Voice Pins); barometric altimeter, accelerometer, gyroscope, 3D compass, thermometer, optical pulse oximeter | COROS PACE 4 specs (US) |
| Durability / ingress | 5 ATM; working temperature −4°F to 122°F (−20°C to 50°C); no MIL-STD rating listed | COROS PACE 4 specs (US) |
| Safety / incident alerts | Safety alerts during navigation; message and call alerts; storm alerts. No crash detection listed | COROS PACE 4 specs (US) |
| Operating system | COROS firmware, updated over Wi-Fi or through the COROS app (not watchOS or Wear OS) | COROS PACE 4 specs (US) |
| Phone compatibility | iPhone or Android through the COROS app over Bluetooth; minimum phone OS not published | COROS PACE 4 specs (US) |
| Wireless (Wi-Fi / Bluetooth) | Bluetooth for your phone and accessories; Wi-Fi or the COROS app for syncing; offline music to supported Bluetooth headphones | COROS PACE 4 specs (US) |
| NFC / contactless payments | None listed | COROS PACE 4 specs (US) |
| Band / strap system | 22mm bands. Nylon: 135–205mm. Silicone: 130–215mm. Controls: digital dial, back button and action button | COROS PACE 4 specs (US) |
| US price | $249 (polymer) or $279 (aluminum) on coros.com, 19 September 2026 | COROS PACE 4 specs (US) |
| Price band | Mid-range running watch ($240–$280 US list) | Based on the $249 and $279 prices |
| Availability | On sale at coros.com: $249 or $279 on 19 September 2026 | COROS PACE 4 specs (US) |
COROS PACE 4 extras
Specs only this model has.
| Spec | Value | Source and notes |
|---|---|---|
| Sizes | PACE 4 comes in one size, 43.4mm, with two bezels. PACE 3 is 41.9mm; PACE Pro is 46mm | COROS PACE 4 specs (US) |
| Maps | Downloadable global landscape maps (with trail and street names) and topo maps; checkpoints; back-to-start; off-route alerts; touchscreen map control | COROS PACE 4 specs (US) |
| Action button | Action button for shortcuts, Pins and more | COROS PACE 4 specs (US) |
| Versus PACE Pro | 43.4mm vs 46mm AMOLED; 4GB vs 32GB; 19 vs 20 days of daily use; 41 vs 38 hours of all-systems GPS; $249 or $279 vs $349 list; ECG only on PACE Pro | COROS PACE 4 and PACE Pro specs (US) |
The AMOLED screen and what it costs in battery
PACE 4 swaps PACE 3’s Memory LCD for AMOLED: a 1.2-inch, 390 × 390 touchscreen under mineral glass. COROS doesn’t give a brightness figure for it.
Always-on is the setting that decides your charging routine:
| Mode | PACE 4 | With always-on | With offline music |
|---|---|---|---|
| Daily use and sleep tracking | 19 days | 6 days | — |
| High All-Systems | 41 hours | 30 hours | 14 hours |
| Max Dual Frequency | 31 hours | 24 hours | 12 hours |
Leave always-on off for everyday wear and you charge every two to three weeks; turn it on and it’s closer to weekly. During a race, always-on costs about a quarter of the GPS time, and music costs much more.
COROS doesn’t rate PACE 4 in Standard Full GPS, the GPS-and-QZSS mode that gives PACE 3 its longest figure, so 41 hours with every satellite system on is the number to plan around. A full charge takes under 2 hours.
Maps, microphone and an action button
These are what PACE 4 adds over PACE 3. It downloads global landscape maps with trail and street names, and topo maps, then layers checkpoints, back-to-start and off-route alerts on top. You move the map by touch.
The microphone takes voice commands, training logs and Voice Pins, and the action button handles shortcuts and Pins, next to the digital dial and back button. Maps and music both live in the 4GB of storage.
Polymer or aluminum?
Both versions share the 43.4 × 43.4 × 11.8mm case, screen, battery ratings and storage. The aluminum bezel costs $279 instead of $249 and adds a gram: 41 grams on silicone and 33 on nylon, against 40 and 32 for polymer. Bands are 22mm: nylon in a 135–205mm size, silicone in 130–215mm.
Where PACE 4 sits
PACE 4 is COROS’s current mid-range running watch. PACE 3, the older model, costs $199 and has a 41.9mm case with a Memory LCD. PACE Pro is the 46mm model with 32GB, ECG and the Apollo510 processor, for when storage and the bigger screen matter more than price.
Training tools are shared across the range: EvoLab training load, recovery and race predictor, VO2 max and threshold zones, Effort Pace, intervals, training plans and a running form test.
Price
COROS’s US store listed PACE 4 at $249 with the polymer bezel and $279 with aluminum on 19 September 2026. Store prices can change, so look again before you order.
Sources
- Amazon product listing — accessed 2026-09-20
- COROS US — PACE 4 technical specifications — accessed 2026-09-19
- COROS — PACE 4 product page — accessed 2026-09-19
Frequently asked questions
Does PACE Pro last longer than PACE 4?
No. COROS rates PACE 4 for 41 hours of all-systems GPS against PACE Pro's 38, and the two are a day apart in daily use, 19 days against 20. What PACE Pro adds is a bigger 46mm case, 32GB and ECG.
Will PACE 4 work with my iPhone?
Yes. It pairs with the COROS app over Bluetooth on iPhone or Android, and syncs over Wi-Fi or through the app.
Does the heart-rate sensor work over tattoos?
Not always. COROS warns that the optical heart-rate sensor may not work over tattoos, so wear it on clear skin if you can.
Can PACE 4 read my body temperature during a run?
Only with an add-on. It has a thermometer, but COROS says body temperature during training needs a compatible accessory.
Can I wear PACE 4 to bed?
Yes. It tracks sleep, including REM, and the 19-day battery rating assumes you sleep in it with the always-on display off.
Official product page: COROS PACE 4. Tech specs: COROS PACE 4 specs.