Garmin Forerunner 265 Review (2026): 8 Months and 2,400 Hours

Why you should trust this review

I bought this Forerunner 265 at retail and paid for it myself. Garmin did not provide a sample and had no input on this review. With a running watch, the metrics that matter, race prediction, training readiness, GPS accuracy, only prove themselves across a real training block, so a quick loaner review would be close to worthless here.

I wore this watch nearly around the clock for roughly eight months through an actual half marathon build, with a cheaper Garmin on my other wrist for direct comparison, a chest strap for heart rate validation, and a survey grade handheld as my GPS control. I have tested every Forerunner for years, so my read on this one is grounded in the whole line. Every number below came from my own logging, not Garmin’s spec sheet.

How we evaluated

The watch went through a full fourteen week half marathon training block plus months of daily wear. For GPS I ran a surveyed five mile loop with open road, dense canopy, an urban canyon, and a ridgeline against the handheld control, and cross checked it on a long alpine loop. I logged the race predictor’s estimate every week and compared it against my actual race result.

Battery got three runs each in smartwatch mode, multi band GPS, and music plus GPS, each to shutdown. I compared heart rate against a chest strap across dozens of runs and strength sessions, logged training readiness and the recovery metrics daily across the whole block, and measured display brightness outdoors in direct sun.

GPS accuracy

The multi band GPS is the reason to step up from a cheaper Garmin. On my canopy heavy loop the 265 stayed within roughly two and a half meters of the control for nearly the entire route, a clear improvement over a single band watch on the same trees and competitive with the best at this tier. In downtown canyons it held tight where a single band watch drifted badly.

For a runner who cares about pace at the mile split level, that accuracy is the entire argument. It is not quite as tight as a top flagship, but the gap is small and only shows in the most punishing conditions. For road, trail, and rail trail running this is as much GPS accuracy as most people will ever need.

Battery life

Garmin’s battery claims held up in my testing. In normal use with notifications on and a daily multi band GPS workout it delivered about 12 days, and continuous multi band GPS ran close to 19 hours before shutdown. Running music and GPS together is the heaviest load and drained a full charge in a little over eight hours, which is enough for most marathons but tight for an iron distance event.

For a runner training five days a week you charge this roughly once a week, which is a meaningful improvement over the smartwatch flagships that need daily charging. A couple of memory display rivals last considerably longer in GPS mode, but they give up the AMOLED screen to do it, which for most runners is the wrong trade.

Race predictor and training metrics

The race predictor is the standout. Across my fourteen week block the estimate tightened from a loose early guess to within seconds of my actual finish on race morning. After about ten weeks of consistent data the predictions stabilized to within roughly half a minute, which is genuinely remarkable for an algorithm working off wrist heart rate and pace.

Just as important, the full Garmin training suite is here with nothing disabled: training readiness, recovery, heart rate variability status, and stamina all behave exactly as they do on the flagships. After eight months I trust the longitudinal trends more than any single workout’s feedback, and that consistency is the real reason to stay in this ecosystem at this price tier.

Heart rate, display, and build

Wrist heart rate tracked within about four beats of a chest strap for most moving time across dozens of runs. On hard intervals the gap widened, as it does on every wrist sensor, so for VO2 and threshold work I still wear a strap, while for easy base running the wrist data is reliable. The display is the watch’s clear weakness in bright conditions: it is fine indoors and in shade, but in direct overhead sun you will sometimes cup the screen to read it, where brighter flagships stay easy to see.

The fiber reinforced case took eight months of daily wear with only a couple of minor bezel scuffs and no scratches on the glass. At a light weight it is comfortable for sleep tracking, which is exactly where its lighter build beats a heavier flagship for runners who want full round the clock metrics. The silicone band did pick up odor by month four, so swap it for fabric if that bothers you.

The touch screen is worth a quick word too. In everyday use, swiping through data screens and widgets, it is genuinely convenient. In rain, sweat, or with gloves on it becomes unreliable, but the five physical buttons handle every workout function regardless, and you can disable touch during workouts. After eight months I settled on leaving touch on for daily use and off when it rained, which is the best of both worlds.

Who should buy the Forerunner 265?

Buy it if you run serious weekly mileage and want flagship training metrics, if you want AMOLED on a Garmin without paying flagship money, if your races are road or rail trail rather than technical mountain, and if you want a light watch you can comfortably sleep in.

Skip it if you need full maps with turn by turn navigation, where a flagship is the right tool. Skip it if you run multi day events that the GPS battery cannot survive, if you are a brand new runner unsure the habit will stick, where a cheaper model is plenty, or if bright outdoor screen visibility is a top priority for you.

The verdict

The Forerunner 265 hits the sweet spot for serious runners. It gives you the complete Garmin training stack and excellent multi band GPS in a light, sleepable AMOLED package without flagship pricing. The dim screen and breadcrumb only navigation are real compromises, and a new runner does not need this much watch, but for anyone training with intent on roads and trails it is the watch I keep coming back to, and after eight months and a full race block it earned that trust.