Suunto Run 2 vs COROS Pace 4 vs Garmin Forerunner 170
The Suunto Run 2, COROS PACE 4 and Garmin Forerunner 170 all target runners who want a lightweight AMOLED watch without moving into flagship pricing. They are not interchangeable, though: Suunto puts offline maps and music into a larger watch, COROS prioritizes low weight and battery life, and Garmin offers the most familiar smart and training ecosystem.
Quick decision: choose the COROS PACE 4 for the best price-to-battery ratio, the Suunto Run 2 for offline maps and local music in one watch, or the Garmin Forerunner 170 for Garmin Pay, safety features and Garmin’s broader ecosystem. This is a research-based comparison of current manufacturer specifications, not a hands-on test.
Suunto Run 2 vs COROS PACE 4 vs Garmin Forerunner 170: key specs
| Feature | Suunto Run 2 | COROS PACE 4 | Garmin Forerunner 170 |
|---|---|---|---|
| US price checked Sep. 10, 2026 | From $349 (4GB); $399 (64GB) | $249 standard model | $299.99; $349.99 Music |
| Size / weight | 46.5mm; 35g case, 53g with silicone strap | 32g nylon / 40g silicone; 11.8mm thick | 42.6mm; 41g |
| Display | 1.32-inch AMOLED, 466 × 466 | 1.2-inch AMOLED touchscreen | 1.2-inch AMOLED touchscreen, 390 × 390 |
| GPS capability | All-systems, dual-band | All-systems + dual-frequency mode | Multi-GNSS; no multi-band |
| Headline GPS battery | Up to 24h all-systems multi-band; 30h single-band | Up to 41h All Systems (High) | Up to 20h GPS-only; 14h all-systems |
| Daily / smartwatch battery | Suunto markets 10 days daily training; spec table lists up to 13 days smartwatch use | Up to 19 days daily use | Up to 10 days |
| Maps / navigation | Downloadable offline maps and route navigation | Downloadable landscape/topographic maps, routes and turn alerts | Synced courses and breadcrumb-style guidance; no full map layer |
| Training / recovery | EnergySense, adaptive insights in app, recovery and fitness assessments | Running Fitness, recovery, race predictor and marathon plans | Training Readiness, Training Status, Garmin Coach and daily suggested workouts |
| Music | Local offline music | Local MP3 storage; no Spotify/Apple Music integration | Phone-free downloads only on Forerunner 170 Music |
| Payments | No payment feature documented | No payment feature documented | Garmin Pay |
| Safety / tracking | No Garmin-equivalent incident ecosystem documented | Phone-dependent Live Tracking on supported setup | Assistance, incident detection and LiveTrack require a paired compatible phone where specified |
| Phone platforms | Suunto app for iOS and Android | COROS app for iOS and Android | Garmin Connect for iOS and Android |
| Best fit | Maps + music without a flagship watch | Lightest, longest-lasting value choice | Garmin ecosystem and everyday smart features |
Prices vary by region and configuration. Battery figures are manufacturer maxima measured in different modes, so they should not be treated as a controlled cross-brand test.
Best value: COROS PACE 4
At its current $249 US price, the standard PACE 4 undercuts the base Suunto Run 2 by $100 and the Forerunner 170 by about $51. It is also the lightest option here at 32g with the nylon band.
COROS quotes up to 41 hours in All Systems (High) GPS mode and 19 days of daily use. Those numbers are not directly comparable with Suunto’s multi-band figure or Garmin’s GPS-only figure, but the margin is large enough to make PACE 4 the clearest battery-first choice.
The trade-off is smart-platform depth. PACE 4 has local MP3 storage, phone media controls, training plans and recovery metrics, but it does not offer contactless payments or direct Spotify/Apple Music downloads. Its maps are real downloadable landscape and topographic maps, not merely a breadcrumb line, although buyers should not assume Garmin-style on-watch address search or automatic rerouting.
For a more focused budget comparison, see COROS PACE 4 vs Garmin Forerunner 165. Our running-watch battery guide explains why mode names matter when comparing claimed endurance.
Best maps and phone-free audio combination: Suunto Run 2
The Run 2 is the strongest choice if a visible offline map layer and local music both belong on your shortlist. Suunto documents free worldwide offline maps, dual-band positioning and 4GB or 64GB storage configurations. The 4GB US model starts at $349; the 64GB configuration is $399.
Its 46.5mm case is the largest of the three. Suunto quotes a 35g watch-body weight, but the complete silicone configuration weighs 53g, so comparing that 35g headline directly with COROS’s band-inclusive 32g figure would be misleading.
Battery depends heavily on display and satellite settings. Suunto lists up to 24 hours using all-systems multi-band GNSS, 30 hours using all-systems single-band and 40 hours in power-saving modes. That makes it more capable than the Garmin for long mapped activities on paper, while COROS retains the stronger headline endurance and lower weight.
Suunto’s EnergySense, marathon-time guidance and app-based adaptive insights make it running-focused, but these are vendor-described tools rather than independently verified accuracy results. See our broader Suunto vs COROS vs Garmin trail-running comparison for higher-end navigation choices.
Best Garmin ecosystem option: Forerunner 170
The Forerunner 170 is the easiest recommendation for someone already using Garmin Connect, Garmin Coach or Garmin Pay. It brings Training Readiness, Training Status, HRV Status, wrist-based running power and running dynamics into Garmin’s entry-to-mid-range line.
Garmin sells two versions: the $299.99 Forerunner 170 and $349.99 Forerunner 170 Music. Only the Music model stores downloaded playlists and podcasts for phone-free listening. Both include Garmin Pay.
Safety and tracking are another meaningful distinction, but the phone requirement matters. Garmin says smart notifications, LiveTrack and other safety/tracking features depend on a paired compatible smartphone and have their own requirements and limitations. The watch is not a standalone cellular safety device.
The compromise is navigation and battery. The 170 follows synced courses but does not provide the detailed offline map layer of the Suunto Run 2 or PACE 4. Garmin rates it for up to 20 hours in GPS-only mode, 14 hours in all-systems mode and 10 days in smartwatch mode. Our Forerunner 170 vs 265 comparison shows what multi-band GPS, multisport support and the larger display add higher in Garmin’s range.
Maps and navigation: Suunto has the clearest navigation-first pitch
Both Suunto and COROS now document downloaded maps on these models. That corrects an outdated assumption that every lightweight running watch offers only breadcrumb navigation.
- Suunto Run 2: worldwide offline maps, route guidance and 4GB or 64GB map/music storage.
- COROS PACE 4: downloaded landscape and topographic maps, GPX routes, turn alerts and off-route alerts.
- Garmin Forerunner 170: course following without the full onboard map layer found on Garmin’s mapped premium watches.
Suunto therefore gets the navigation recommendation because maps and storage are central to the product, not because we have independently tested map detail or rerouting against COROS. PACE 4 remains a strong route-following option for less money.
Training and recovery: ecosystem versus simplicity
Garmin offers the widest named training stack: Garmin Coach, adaptive daily suggested workouts, Training Readiness, Training Status, recovery time, HRV Status and more than 80 sports apps. It is the safest choice for runners who already rely on Garmin Connect or compatible services.
COROS uses EvoLab metrics such as Running Fitness, recovery and race prediction, with personalized marathon plans and structured-workout sync. Its interface is focused and its current model also supports voice training notes.
Suunto combines recovery and fitness assessments with EnergySense, marathon-time guidance and adaptive insights in the Suunto app. The Run 2 is especially interesting for runners who want maps and training guidance but do not need Garmin’s app ecosystem.
None of those platforms turns wrist data into medical advice. Training and recovery scores are estimates that work best as trends alongside perceived effort, sleep and training context.
Music, payments and everyday use
The three watches divide neatly here:
- Choose Suunto Run 2 for local offline music on every listed storage configuration.
- Choose COROS PACE 4 for local MP3 files and phone media controls, but not streaming-service downloads.
- Choose Forerunner 170 Music for supported third-party playlist downloads; the standard 170 does not store music.
- Choose Garmin if contactless payment is important. Suunto and COROS do not document an equivalent payment feature on these models.
Which one should you buy?
Buy the COROS PACE 4 if you want the lightest watch, the lowest current US price and the strongest headline battery life. It is the rational value pick for a running-first buyer.
Buy the Suunto Run 2 if offline maps and local music matter more than minimum weight or price. Pick the 64GB version only if the extra map/music storage justifies the premium.
Buy the Garmin Forerunner 170 if Garmin Connect, Garmin Coach, Garmin Pay and phone-assisted safety features are part of the decision. Choose the Music model only when phone-free playlists justify the extra cost.
There is no universal winner: COROS wins value and low weight, Suunto wins the maps-plus-music combination, and Garmin wins ecosystem and smart-feature depth.
Official sources
- Suunto Run 2 product and specifications
- COROS PACE 4 product page
- COROS PACE 4 setup, maps and navigation
- Garmin Forerunner 170 announcement
- Garmin Forerunner 170 specifications
Specifications and US prices checked September 10, 2026. This page is research-based and does not claim hands-on testing.
Frequently asked questions
Does the COROS PACE 4 have maps?
Yes. COROS documents downloadable global landscape and topographic maps, route navigation, turn alerts and off-route alerts on PACE 4. That does not make every mapping workflow identical to Garmin’s premium mapped watches.
Does the Garmin Forerunner 170 have multi-band GPS?
No. Garmin documents multi-GNSS on the Forerunner 170, while the Forerunner 265 adds multi-band GNSS and SatIQ. The 170 still supports multiple satellite systems, but buyers should not describe it as dual-frequency.
Which watch lasts longest?
COROS publishes the strongest headline figures: up to 41 hours in All Systems (High) GPS mode and 19 days of daily use. Cross-brand results depend on display, satellite mode, navigation, music and settings, so compare the exact mode you plan to use.
Which watch is best for running without a phone?
Suunto Run 2 and COROS PACE 4 store local music. Forerunner 170 Music supports downloaded content from compatible music services and adds Garmin Pay. Garmin’s LiveTrack and safety features still require a paired phone where specified.
Are these hands-on recommendations?
No. This comparison uses current manufacturer documentation and separates published specifications from purchase guidance. It does not claim that RunnersPicks tested these three watches side by side.
See how we compare products for our research and hands-on methodology.