Garmin Forerunner 255 Review: Accurate GPS, Long Battery
Digging into user feedback across multiple platforms, the Garmin Forerunner 255 GPS Running Smartwatch emerges as a highly capable training tool with a strong reputation for accuracy, battery endurance, and multi-sport versatility. Scoring an impressive 8.8/10, it’s widely regarded as one of the best mid-tier running watches—though not without quirks. While Garmin markets it as a “train smarter, recover smarter” device, users confirm much of this, especially praising its MIP display for outdoor readability, but some point to occasional software hiccups and hardware issues like inconsistent button feel.
Quick Verdict: Conditional buy—excellent for runners and multi-sport athletes who value GPS accuracy and long battery life, but those seeking touchscreen convenience or flawless software integration may want to weigh alternatives.
| Pros | Cons |
|---|---|
| Exceptional battery life (up to 14 days smartwatch, 30h GPS) | No touchscreen—divisive among users |
| Highly accurate GPS and HR tracking | Occasional software bugs and resets |
| Lightweight, comfortable for long wear | Button feel inconsistent across units |
| Rich running metrics (VO2 max, running dynamics) | Limited mapping vs higher-end models |
| Durable build with Gorilla Glass 3 | Some Bluetooth connectivity issues |
| Clear MIP display in sunlight | Garmin Connect app lacks full third-party sync |
| Versatile for multiple sports | Strap material caused skin irritation for a few |
Claims vs Reality
Garmin promotes the Forerunner 255’s “up to 14 days battery life” and “superior GPS accuracy.” Trustpilot and Reddit users back this up, with one verified Best Buy buyer noting: “Once your watch is fully charged, it lasts two weeks before needing a recharge… I’ve charged it once in the time I’ve had it and it only took a bit over an hour.” This endurance resonates with ultra runners and multi-day hikers who can skip carrying extra chargers.
The marketing claim of “superior positioning accuracy” via multi-band GPS also aligns with real-world reports. Reddit user j-do said: “Finally a watch with accurate (dual band) GPS… very rich in specific features for runners.” Trail runners especially find GPS tracks align closely with mapping tools like Strava and Google Maps.
However, Garmin’s pitch of “train and recover smarter” via features like HRV status and advanced sleep tracking is met with mixed reactions. While some, like a Reddit user, said: “I’ve improved my sleep hygiene since getting the watch and now get better sleep,” others complain about nap detection failing after updates, with one noting it “worked 5 days out of 7” before ceasing entirely.
Cross-Platform Consensus
Universally Praised
Battery life is a standout across Amazon, Reddit, and Trustpilot. Long-distance athletes describe being freed from nightly charging. A Best Buy reviewer wrote: “It’s very durable… lasted me through countless runs, hikes, swims, ski runs, lifting workouts, HIIT classes, pilates.” GPS precision is another point of consensus—distance measurements on wooded trails often fall within 0.3% of manual checks. The MIP display, though less flashy than OLED, earns praise from outdoor runners. Reddit user kurt said: “For running outdoors in a very sunny place, it’s better… I don’t want the OLED screen.”
The watch’s comfort gets repeated mention; even those with small wrists report a good fit. Its lightweight build (49g) means triathletes and swimmers can wear it through transitions without irritation. Durability also wins approval, with Gorilla Glass 3 resisting scratches in incidents that mar rival devices.
Common Complaints
Connectivity issues with Bluetooth devices and Garmin’s ecosystem frustrate some. One Reddit user noted charging interruptions “at slightest move of cable,” suggesting hardware sensitivity. Garmin Connect’s lack of seamless third-party app syncing is another sore point: “It doesn’t matter if I log weight training or runs… I always have to go into Garmin Connect and log the workouts individually,” a Best Buy reviewer explained.
Button quality shows inconsistency. While some units have “perfect and clicky” buttons, others suffer mushiness or stickiness. Reddit discussions liken it to “a lottery, hit or miss.” Software bugs, though not constant, can be disruptive—reports of boot loops when starting certain activities led at least one user to return the watch.
Divisive Features
The absence of a touchscreen splits opinion. Some prefer physical buttons to avoid accidental inputs during workouts, as one Trustpilot buyer said: “It’s not touch screen… prevents auto-starting workouts.” Others miss the convenience, calling it “a bit inconvenient” for navigation. Mapping limitations also divide users—breadcrumb navigation is enough for some runners, but others, accustomed to full maps on models like the Forerunner 955, find it restrictive.
Trust & Reliability
Trust in Garmin’s build quality is generally strong. Several Reddit and Best Buy users report more than a year of consistent performance with minimal battery degradation. One owner after 1.5 years said: “Would buy over and over again… battery time has not deteriorated much.” However, isolated hardware faults—charging port sensitivity, strap-induced eczema—underscore that longevity can vary by unit.
Firmware updates sometimes introduce issues, like broken nap tracking or activity profile glitches, though Garmin often releases fixes. The community advises keeping firmware current but being cautious immediately after major updates.
Alternatives
The Forerunner 955 appears most often as a higher-end alternative in discussions. It offers full mapping and extra metrics like Training Readiness, but at a higher price and slightly heavier build. Users who prioritize navigation lean toward the 955, while those focused on core running metrics find the 255 more cost-effective. The Forerunner 265, with its OLED display, tempts some, but outdoor athletes in sunny climates often prefer the 255’s MIP screen.
Price & Value
Current eBay listings show new units between $230–$275, well below the $329.99 Amazon price, with refurbished options around $244.73. Resale value holds well—used models still attract bids over $200. Reddit users suggest waiting for seasonal sales, noting 20% discounts make it “the sweet spot between price and features.”
FAQ
Q: Does the Forerunner 255 have full mapping?
A: No, it uses breadcrumb navigation. This suffices for many runners but hikers wanting detailed maps may prefer the 955.
Q: Is the battery life really 14 days?
A: Many users confirm close to 14 days in smartwatch mode, with GPS mode lasting 25–30 hours depending on settings.
Q: Can it track naps accurately?
A: Initially yes, but some report nap tracking stopped after firmware updates. Garmin releases periodic fixes.
Q: Is the MIP display readable indoors?
A: Yes, though it excels outdoors in sunlight. Indoors, the backlight ensures visibility.
Q: Is it good for triathlons?
A: Yes, with built-in triathlon mode and quick activity transitions, widely praised by multi-sport athletes.
Final Verdict: Buy if you’re a runner, triathlete, or outdoor athlete needing accurate GPS, long battery life, and durable build over flashy displays. Avoid if you demand touchscreen navigation or flawless third-party app integration. Community pro tip: Check firmware forums before updating, and consider discounted pricing events to maximize value.
