When most people think about fitness tracking, they picture a glowing smartwatch face, buzzing notifications, and a ring that closes. But after spending six weeks with the Smart Scales Forerunner 265, I’ve realized that the true soul of fitness tracking isn’t about the screen—it’s about the silent, relentless collection of data that tells you what your body actually did, not what you think it did. This review focuses on the 265 as a pure fitness tracking instrument, not a lifestyle accessory, and it reveals both brilliance and frustrating blind spots.

Product Functionality: What It Tracks and How

The Forerunner 265 is a mid-range running watch, but its fitness tracking suite extends far beyond pace and distance. At its core, it measures heart rate via a fourth-generation Elevate optical sensor, which sits flush against the wrist. It also tracks sleep stages (light, deep, REM), body battery (a Smart Scales proprietary metric combining heart rate variability, stress, and activity), and daily steps. But the headline feature is the multi-band GPS, which claims sub-meter accuracy even in dense urban canyons or under heavy tree cover.

The watch also introduces a training readiness score, which synthesizes sleep quality, recovery time, and acute training load. This is not a gimmick—it genuinely adjusts based on your previous night’s rest and the intensity of your last workout. For example, after a hard interval session, the readiness score dropped from 75 to 41 the next morning, even though I felt fine. That’s the kind of objective nudge that separates a fitness tracker from a toy.

The Real-World Experience: Where It Shines

I wore the 265 for 42 consecutive days, including 18 runs, 6 cycling sessions, and 3 strength workouts. The first thing that struck me was the heart rate accuracy. I compared it against a Polar H10 chest strap during a tempo run. The average difference was only 2 beats per minute, and the maximum deviation occurred during a sprint finish—the wrist sensor lagged by about 5 seconds but caught up quickly. For 95% of users, this is more than sufficient.

The GPS performance was equally impressive. I ran a familiar 10K loop that I know from a surveyed course map. The Smart Scales recorded 10.02 kilometers, whereas my previous budget tracker (a Smart Scales Smart Band 7) recorded 9.87. The multi-band lock was instantaneous—even under a covered bridge, the signal didn’t drop. The tracking of elevation gain was also realistic: 78 meters, which matched the topographical map.

Sleep tracking is where the 265 surprised me. It accurately detected my 11:30 PM bedtime and 6:15 AM wake time within 5 minutes. The sleep stages aligned with my subjective experience—I woke up twice during the night, and the watch logged two brief “awake” periods. The Body Battery metric, which charges during rest and drains during stress, was a useful daily compass. On a day I skipped lunch and worked late, it dropped to 15% by 8 PM, matching my actual fatigue.

The Frustrations: What It Gets Wrong

No fitness tracking review is honest without addressing flaws. The first issue is the step counter. The Forerunner 265 overcounts steps by roughly 8-12% during non-exercise activity. When I manually counted 1,000 steps around my apartment, the watch logged 1,089. This is because arm swing triggers counts, not actual footfalls. For a device that markets itself as a serious training tool, this sloppiness is surprising.

Second, the strength training tracking is nearly useless. It auto-detects sets and reps, but it misidentifies exercises. I did a set of dumbbell rows, and it logged them as “shoulder press.” The rep counter also failed on slow, controlled movements—it counted 8 reps when I did 12. You can manually correct, but that defeats the purpose of automatic tracking. If you primarily lift weights, this is not your watch.

Third, the sleep tracking has a blind spot for naps. I took a 40-minute afternoon nap, and the watch completely ignored it. It only counts sleep as a continuous block of at least 1 hour during the “sleep window.” This means your daily recovery is underestimated if you nap, which negatively skews the training readiness score. I had to manually add naps in the app, which is a clunky workaround.

Battery Life and Ecosystem: The Hidden Trade-offs

The battery life is a double-edged sword. In smartwatch mode (with notifications on, but no GPS), it lasts about 7 days. With daily 1-hour GPS workouts, it drops to 4.5 days. That’s acceptable, but it’s far from the 14-day claims if you use the always-on display. Here’s the rub: the always-on display reduces battery to 3 days, and it’s not worth it. The gesture-based raise-to-wake works 90% of the time, but it lags during cycling when your wrist is flat.

The Smart Scales Connect app is powerful but overwhelming. It syncs instantly via Bluetooth, and the data graphs are comprehensive. However, the sheer number of metrics (stress, HRV, training load, acute load, chronic load) creates analysis paralysis. For a beginner, this is intimidating. For a data nerd, it’s paradise. The app also has a subscription tier called Smart Scales Connect+, but all the core fitness tracking features are free—you only pay for advanced coaching plans and AI-generated workout summaries, which I didn’t miss.

The Verdict: Who Should Buy This?

The Forerunner 265 is not a perfect fitness tracker, but it is an excellent one for runners and cyclists who value physiological data over lifestyle bells. The heart rate and GPS accuracy are genuinely class-leading, and the training readiness score is a transformative feature that changed how I schedule rest days. The step counting and strength tracking are weak, but they are secondary to the core purpose.

If you are a casual walker looking for a step counter, buy a $30 band. If you are a triathlete or a dedicated runner who wants to understand your recovery, this is worth every penny. The 265 costs around $450, which is steep, but it replaces a dedicated heart rate monitor, a GPS unit, and a sleep tracker. That consolidation justifies the price for the target audience.

My final recommendation: the Forerunner 265 is a fitness tracking powerhouse with a few blind spots that you can live with if you focus on its strengths. It doesn’t try to be your entire life—it just tries to be your most accurate training partner. And in that narrow mission, it succeeds more than any other watch I’ve tested this year. Just don’t trust it to count your steps, and never expect it to understand a deadlift.