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The COROS PACE 4 is a $249 GPS running watch introduced on November 10, 2025, with a 1.2-inch AMOLED touchscreen, dual-frequency GPS, a redesigned optical heart-rate sensor and a built-in microphone. COROS positions it as its lightest AMOLED GPS watch: it weighs 32 grams with the nylon band or 40 grams with the silicone band. That makes it a notably light training watch, but the broad claim that it is the lightest GPS running watch on the market is not independently established.
The PACE 4’s appeal is specific: serious running and endurance-training tools in a light, colorful-screen design. Its compromises matter just as much. It offers breadcrumb route guidance rather than full offline maps, and it is not a smartwatch substitute for calls, streaming music or a large app ecosystem.
COROS PACE 4 at a glance
| Specification | Detail |
|---|---|
| Launch | November 10, 2025 |
| Standard U.S. launch price | $249 |
| Display | 1.2-inch AMOLED touchscreen; 390 × 390 pixels |
| Weight | 32 g with nylon band; 40 g with silicone band |
| Thickness | 11.8 mm |
| Satellite modes | All-Systems and Dual-Frequency |
| Advertised battery life | Up to 19 days daily use; up to 41 hours in All-Systems High GPS mode |
| Water resistance | 5 ATM |
| Navigation | Breadcrumb routes; no full offline maps |
| Case | Fiber-reinforced polymer on standard edition |
Specifications and current product positioning are listed on COROS’s PACE 4 page; launch details are in its November 2025 announcement. Prices, promotions, colors and stock can vary by region and retailer.
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1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errorsIs the PACE 4 really the lightest AMOLED GPS watch?
It is safe to call the PACE 4 one of the lightest GPS watches with an AMOLED display, or COROS’s lightest AMOLED GPS watch. It is not safe to turn the marketing line into a proven universal record without a current, apples-to-apples market comparison.
#1 Best Overall
- Ultralight & Ultra-Thin Design: Weighing only 32g with the nylon band and just 11.8mm thin, COROS PACE 4 GPS watch is lighter than an energy gel and comfortable enough for 24/7 wear, ensuring it never slows you down.
- EASY ON THE EYES: The 1.2"touchscreen AMOLED display keeps colors vibrant and lines sharp, with auto-adjusting brightness that ensures the screen is easy to read in all environments. More detailed display 164% higher resolution compared to COROS PACE 3.
- BIG BATTERY LIFE: Train longer without interruption. With 41 hours of continuous GPS use and up to 19 days of daily battery life, ensure your training isn’t tied to a charger.
- NEW WAY TO TRAIN with VOICE features：Using PACE 4's voice recording tool, about where you were, what you saw, and how you felt during your workouts and capture training logs at the completion of your activity. Use Voice Control to set an alarm for tomorrow morning, create a target workout and more.
- EFFORTLESS CONTROL: A combination of a tactile digital crown, two easy to reach buttons, and a smooth touchscreen offers intuitive control even at high intensity. Customize the Action Button for one-tap access to key features like media controls, breadcrumb navigation, or to record Voice Pins.
The band makes a substantial difference: COROS lists 32 grams with nylon and 40 grams with silicone; Tom’s Guide measured 27 grams without a band. Compare like with like. A watch-only figure is not directly comparable to a competitor’s weight with its strap attached, and band materials and sizes vary. The standard model uses a fiber-reinforced polymer case, which helps keep it light but does not provide the premium metal-and-sapphire feel some buyers want.
For runners, the practical point is less about a record and more about comfort: this is a relatively unobtrusive watch for daily wear and long sessions. Buyers who care more about case finish than minimum weight can consider the aluminum-bezel editions, which cost more.
What changed from the PACE 3?
The PACE 4’s headline changes are an AMOLED display in place of the PACE 3’s memory-in-pixel screen, dual-frequency GNSS, a built-in microphone, a redesigned optical heart-rate sensor and longer advertised GPS battery life. COROS says the new display has 164% higher resolution than the PACE 3. These changes make the PACE 4 more visually modern and add capabilities, but do not by themselves make it the right upgrade for every PACE 3 owner.
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Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →The PACE 3 remains worth considering if you prefer its MIP display, do not need dual-frequency GPS or voice notes, and can find it at a lower price. Tom’s Guide listed it at $199 alongside the PACE 4 at $249 in its comparison; those are reported comparison prices, not a guarantee of current sale pricing. If the newer screen and GPS mode are not important to your training, saving the difference may make more sense.
AMOLED is sharper, but changes the battery calculation
The 1.2-inch, 390 × 390 AMOLED touchscreen offers richer colors, stronger contrast and a sharper-looking interface than a MIP display, particularly indoors and in low light. COROS describes it as an auto-adjusting display with a tapered, 2.5D design. The trade-off is power: AMOLED use, especially with the screen always on, affects endurance.
Rank #2
- Uncompromisingly light and durable: The 6000‑series aluminum alloy bezel provides a high‑integrity frame, yet PACE 4 Black Crystal weighs just 33 g (with nylon band) – balancing structural integrity, a smooth finish, and an incredibly lightweight profile for the wear and tear of an active life.
- AMOLED AT ITS BEST: The touchscreen AMOLED display has a tapered edge, crystal clear visibility, and vibrant colors. It brings a more detailed display with 164% higher resolution than the COROS PACE 3.
- BIG BATTERY LIFE: Train longer without interruption. With 41 hours of continuous GPS use and up to 19 days of daily battery life, ensure your training isn’t tied to a charger.
- NEW WAY TO TRAIN with VOICE features：Using PACE 4's voice recording tool, about where you were, what you saw, and how you felt during your workouts and capture training logs at the completion of your activity. Use Voice Control to set an alarm for tomorrow morning, create a target workout and more.
- EFFORTLESS CONTROL: A combination of a tactile digital crown, two easy to reach buttons, and a smooth touchscreen offers intuitive control even at high intensity. Customize the Action Button for one-tap access to key features like media controls, breadcrumb navigation, or to record Voice Pins.
COROS advertises up to 19 days of daily use and up to 41 hours in All-Systems High GPS mode. Those figures describe different usage conditions and should not be treated as a single expected battery result. Tom’s Guide lists 31 hours for dual-band GPS and 24 hours for dual-band GPS with the display always on. Its review also reports about six days of always-on daily use as an estimate and four to five days in a more demanding always-on pattern with daily running. Independent figures can differ because GPS mode, screen behavior and test routines differ.
In short, the long headline figures are most relevant if you use a less demanding display setup and the specified GPS mode. Frequent GPS workouts, always-on display, notifications and other use reduce time between charges. If you want the brightest display available all day, plan around the shorter end of the range rather than the maximum.
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What dual-frequency GPS does—and does not—do
The PACE 4 supports All-Systems and Dual-Frequency satellite modes, communicating with major constellations including GPS, GLONASS, Galileo, BeiDou and QZSS, according to TechRadar’s review. Dual-frequency GNSS is designed to improve positioning reliability where signals are difficult: for example, among tall buildings or under tree cover, where signals can be blocked or reflected.
It is not a guarantee of a perfect track. Results still depend on satellite visibility, route conditions, firmware, how the watch is worn and the recording mode selected. Dual-frequency can also draw more power than less demanding GPS modes, so use it when the route or accuracy need justifies the battery cost. For open roads and ordinary training, another supported mode may be a more sensible balance.
Training features are the PACE 4’s main reason to exist
COROS is selling a training platform, not just a screen and satellite receiver. The PACE 4 supports structured and interval workouts, Virtual Pacer, race predictions, personalized marathon plans and running-power-based plans. It tracks measures such as VO₂ max, lactate threshold and recovery time, alongside sleep stages, heart-rate variability and menstrual-cycle information.
Rank #3
- Uncompromisingly light and durable: The 6000‑series aluminum alloy bezel provides a high‑integrity frame, yet PACE 4 Black Crystal weighs just 33 g (with nylon band) – balancing structural integrity, a smooth finish, and an incredibly lightweight profile for the wear and tear of an active life.
- AMOLED AT ITS BEST: The touchscreen AMOLED display has a tapered edge, crystal clear visibility, and vibrant colors. It brings a more detailed display with 164% higher resolution than the COROS PACE 3.
- BIG BATTERY LIFE: Train longer without interruption. With 41 hours of continuous GPS use and up to 19 days of daily battery life, ensure your training isn’t tied to a charger.
- NEW WAY TO TRAIN with VOICE features：Using PACE 4's voice recording tool, about where you were, what you saw, and how you felt during your workouts and capture training logs at the completion of your activity. Use Voice Control to set an alarm for tomorrow morning, create a target workout and more.
- EFFORTLESS CONTROL: A combination of a tactile digital crown, two easy to reach buttons, and a smooth touchscreen offers intuitive control even at high intensity. Customize the Action Button for one-tap access to key features like media controls, breadcrumb navigation, or to record Voice Pins.
Runners can sync training plans from TrainingPeaks and Final Surge, and routes from Strava, RideWithGPS and Wikiloc. An external Bluetooth heart-rate strap is supported, which is useful if you prefer chest-based readings for hard intervals or race analysis. These tools make the watch a stronger fit for a runner who actively follows workouts, paces and recovery trends than for someone mainly seeking general notifications and apps.
Heart-rate tracking: improved, not infallible
COROS says the optical sensor has been redesigned with larger LEDs and a more secure fit to reduce spikes and dropouts. In Tom’s Guide’s comparison with a chest strap, readings were generally close, but not perfect; larger discrepancies appeared especially at the start of runs or after pauses.
That is a useful result, not a promise that wrist-based heart rate will match a chest strap in every workout. Optical sensors can be affected by fit, motion and changing intensity. For demanding intervals, race pacing based on heart rate or physiological analysis, pair a compatible strap or treat wrist readings as an estimate.
Voice notes, music and everyday smart features
The built-in microphone supports training logs and Voice Pins—spoken notes associated with a workout. Think of Voice Pins as a way to record observations without stopping to type, not as a general-purpose voice assistant. COROS also lists media controls for actions such as changing tracks or volume.
Independent coverage reports local MP3 storage rather than streaming-service integration. Media behavior can depend on software updates, and reports differ on the precise current controls; check COROS’s current product information and software documentation if a particular playback function is essential. The PACE 4 is training-first, with less extensive smartwatch functionality than an Apple Watch or some Garmin models. Do not buy it expecting calls, a broad app catalogue or the same streaming options as a full smartwatch.
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Rank #4
- ALPINE-GRADE ENGINEERING+IN PLAIN SIGHT: LIGHTWEIGHT TITANIUM. REINFORCED LUGS. TOUCHSCREEN SAPPHIRE DISPLAY. APEX 4 pairs an 1.2 inch clear always-on, memory in pixel display with scratch resistant sapphire glass.
- Long Battery-TO LAST THROUGH YOUR LONGEST DAYS: Long enough to last 100 miles around Mont Blanc, or linking up the Grand Traverse. With up to 41 hours of All Systems GPS(APEX 4 42mm), you'll have full confidence in your watch whether it's linking up the Grand Traverse, or the full loop around Mont Blanc.
- RAZOR-SHARP ACCURACY, WITHOUT LIMITS: All systems GPS + Dual-frequency GPS with vertical algorithms built for challenging environments in dense forests, steep couloirs, and alpine terrain and sheer walls.
- 30x Faster map and graphic rendering speeds: Topographic and landscape, with trail and street names, plus turn-by-turn satellite, and hydro maps give you the information you need when you need it, even without cell service. Two map layers with 15m zoom plus trail and street names keep you oriented on trails, in the city, or on the slopes.
- Microphone + Speaker: Record Voice Pins to capture beta on the wall or save a note-to-self during your long run to help be better prepared next time. Take hands-free calls and listen to your activity alerts out loud.
Routes are supported; offline maps are not
The watch can guide you along a synced route using breadcrumb navigation: a line to follow rather than a detailed street or topographic map. That can be enough to stay on a planned running course, but it is not a substitute for full offline maps when exploring unfamiliar trails or navigating without a phone. If maps are a priority, look at the COROS PACE Pro, which Tom’s Guide compared at $299 and identified as having a larger display and offline maps. Its price and availability may change.
Standard and aluminum PACE 4 editions
The standard PACE 4 launched at $249. COROS subsequently announced Black Crystal and Cloud White aluminum-series editions, as well as a Jakob Ingebrigtsen special design. Black Crystal was announced at $279. These are PACE 4 editions, not a new generation; the aluminum versions change the exterior and price, while the core training platform remains the PACE 4 foundation. Check the aluminum-edition buying page for current options. Do not assume every detail is identical without checking the listing for the specific edition.
The aluminum option makes sense if appearance and bezel material matter enough to justify the premium. If minimizing weight and cost is the goal, the standard polymer version better fits the PACE 4’s original proposition.
PACE 4 versus the main alternatives
| Watch | Consider it if… | Main trade-off |
|---|---|---|
| COROS PACE 3 | You want to spend less and prefer a MIP screen; you do not need the PACE 4’s AMOLED, microphone or dual-frequency GPS. | Older display and feature set; current prices and stock vary. |
| COROS PACE Pro | You want to stay with COROS but need a larger display and offline maps. | More expensive and larger; Tom’s Guide listed it at $299 in its comparison. |
| Garmin Forerunner 165 | You want a comparable lightweight AMOLED running watch and value Garmin’s broader ecosystem or smartwatch functions. | Compare the exact variant, training tools, music and navigation features; current prices vary. |
| Suunto Run | You prefer Suunto’s platform or its feature mix and find its price compelling. | Compare route tools, battery behavior and software for your own use. Tom’s Guide judged the PACE 4 easier to use and longer-lasting in its assessment; that is a reviewer’s view, not a universal result. |
The Garmin Forerunner 165 and Suunto Run are relevant AMOLED running-watch alternatives, but there is no single winner independent of ecosystem preference. Garmin’s broader smart and training ecosystem may suit someone already using Garmin Connect. The PACE 4’s case is its low weight, endurance claims and focused COROS training workflow. TechRadar and Tom’s Guide discuss these rivals in their PACE 4 coverage and review.
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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →Who should buy the COROS PACE 4?
- Road runners and marathon trainees who want structured workouts, pacing tools and training metrics in a light watch.
- Runners who want AMOLED but do not want a bulky device.
- People who run in urban or wooded areas and want the option of dual-frequency positioning, while understanding its battery trade-off.
- Endurance athletes who value battery life and training functionality more than a rich smartwatch app experience.
Who should look elsewhere?
- Hikers and explorers who need maps: breadcrumb navigation is not full offline mapping.
- Streaming-music listeners or smartwatch power users: this is not built around streaming services, calls or a broad app platform.
- Buyers prioritizing premium materials: the standard model is polymer with mineral glass, not a sapphire-and-metal premium watch.
- Athletes who need the best possible heart-rate data without extra gear: consider using a chest strap, especially for intervals and races.
- People who prefer a larger screen: the PACE Pro is the more relevant COROS comparison if its maps and size suit you.
Verdict
The COROS PACE 4 is a compelling lightweight running watch for people who want an AMOLED screen, dual-frequency GPS and a substantial set of training tools without paying for an outdoor-navigation flagship. Its strongest claim is not that it has conclusively beaten every rival in a weight category, but that it combines an unusually light build with a modern display and endurance-focused software at a $249 launch price.
Buy it for training and comfort, not for offline maps or full smartwatch versatility. The 32-gram figure includes the nylon band, GPS and battery estimates depend on mode, and “lightest” is best treated as COROS’s product positioning rather than an independently verified market-wide record.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
