TraviaTechPie Review

The Operating Systems

Part 2 examined these three watches as hardware — silicon, displays, sensors, antennas. But a smartwatch is experienced as software far more than as metal, and, increasingly, as a subscription. This installment covers the operating systems, the app ecosystems, and the paywall layer that Part 1 identified as the genuine hidden cost of ownership.

Three operating systems are in play, and each expresses a different idea of what a watch should be.

watchOS, in its 2026 release, remains the most polished. Its application ecosystem is the strongest in wearables — not the largest in raw count, but the best curated, with higher-quality titles and tighter integration with the iPhone it depends upon. That dependence is absolute: the Apple Watch pairs with no other phone. The cost of watchOS’s capability is energy. Notification mirroring, assistant standby, background app refresh, health synchronization, and now on-device intelligence features keep the processor continuously occupied — the hardware-level reason, established in Part 2, that the Apple Watch endures for roughly a day.

Wear OS, which the Galaxy Watch 8 runs beneath Samsung’s One UI Watch layer, takes the opposite posture on openness. It draws on the Google Play catalogue, which is broad, though it carries a higher proportion of low-quality ports. Its distinguishing feature is Gemini: the Galaxy Watch 8 is the first watch to carry Google’s assistant on the wrist. Two qualifications matter. The version aboard the Galaxy Watch 8 is cloud-dependent; the deeper “Gemini Intelligence” announced for Wear OS 7 requires newer hardware the Watch 8 will not receive. And Wear OS 7 itself, unveiled at Google’s developer conference in May 2026, is expected to reach the Galaxy Watch 8 only around July, alongside One UI 9 Watch.

Garmin OS is the outlier, and deliberately so. It is closer to embedded firmware than to a general-purpose platform: its third-party app provision is thin, and that thinness is not a limitation the company failed to overcome but a choice it made. The ten-day battery established in Part 2 is the direct dividend of that restraint.

One practical figure rarely appears in comparisons: how long the software will be supported. Samsung commits formally to four years of operating-system updates. Apple typically delivers four to five but publishes no formal guarantee. Garmin states no figure at all.

The Subscription Layer

Here is the line that no specification table prints. Each of these three watches is now attached to a subscription, and the subscription — not the sticker — increasingly determines the cost of ownership.

Apple’s Fitness+ costs $9.99 per month, or $79.99 per year, and is also folded into the Apple One Premier bundle. It is optional, but the qualifier is thinner than it sounds: without Fitness+, the Apple Watch’s workout-coaching experience is substantially hollowed out. Garmin introduced Connect+ in 2025 at $6.99 per month or $69.99 per year. The base Garmin Connect application remains free and still delivers core metrics — VO2 Max, training load, recovery time — but Connect+ gates the newer material, including AI-driven insights and performance dashboards, and Garmin’s chief executive has stated plainly that future features are likely to arrive behind that paywall. Samsung Health is free today; Samsung has confirmed it is exploring a paid tier. New Galaxy Watch 8 buyers receive a six-month iFIT bundle — worth noting in itself, since it indicates that Samsung leans on a third-party service for structured coaching where Apple operates Fitness+ in-house.

Read against this layer, the Part 1 price table reorders itself. Over a three-year horizon, the watch with the most alarming sticker and the one with the most reassuring one can change places entirely.

Services in Practice

A feature list records what a watch has. It does not record how well the watch does it, and the gap between the two is wide.

Sleep tracking is a useful test. Comparative testing has found the Apple Watch more consistent at distinguishing sleep stages; the Galaxy Watch 8 is competent but less so. Garmin’s strength is not single-night staging at all but longitudinal load — its Body Battery metric tracks accumulated fatigue across days, a question the other two answer less convincingly. Workout coaching follows a similar pattern: Garmin’s is the most serious of the three, yet the most advanced layer of it is precisely what is migrating behind Connect+. The Gemini assistant, genuinely more capable than Siri on the wrist, nonetheless stumbles and consumes battery when left listening — a quiet contradiction, given that Samsung markets the assistant as a strength and battery as a known weakness.

One asymmetry deserves attention before buying: switching cost. Health history accumulated on an Apple Watch does not transfer to a Samsung device. Garmin Connect, by contrast, syncs without charge to third-party platforms such as Strava and TrainingPeaks, which makes its ecosystem lock-in comparatively light — with the exception of the insight data generated inside Connect+.

The Bottom Line

As software, the three watches resolve into three sentences. Apple sells the most refined experience and bills monthly for the fitness half of it. Samsung sells the most generous free tier — with the words “for now” attached, since a paid tier is openly under consideration. Garmin sells the least software, on purpose, and then asks, with growing insistence, to be paid a subscription for the best of what remains.

Specifications and software, however, describe a watch in theory. Part 4 turns to the practice — to what owners report after months of wear, and to the one reaction that has been louder than any other.

원문 기준 / Note: pricing and software details as of May 2026, US market.

Photo: Simon Daoudi / Unsplash