Best 2026 Smartwatches for operating system experience

#1 Garmin Forerunner 70
5.0

Garmin’s newer operating system brings the same polished interface and widgets found on more expensive watches. The experience feels modern and consistent across the lineup.

Pros: step counting accuracy, app ecosystem

Cons: Bluetooth connectivity, pairing reliability

#2 Garmin Forerunner 170
4.8

Garmin’s newer OS looks more polished, feels more modern, and aligns the watch with higher-end Forerunners.

Pros: recovery insights, fitness tracking accuracy

Cons: ECG functionality, call handling

#3 Amazfit Active 3 Premium
4.6

Operating system experience is positive, with reviewers describing Zepp OS interaction as smooth and free of stutters.

Pros: pairing reliability, brightness

Cons: Wi-Fi connectivity, Bluetooth connectivity

#4 Garmin Forerunner 170 Music
4.5

Garmin’s latest interface looks more polished, colorful, and modern while bringing sports and smartwatch tools into one place. It also positions the watch well for future updates.

Pros: music controls, pairing reliability

Cons: LTE connectivity, ECG functionality

#5 Amazfit Balance 3
3.9

Zepp OS 6 is generally smooth and capable, but reactions to the redesign were mixed. Some appreciated the reorganized cards and depth, while others preferred the previous layout and saw...

Pros: battery life, watch face quality

Cons: activity auto-detection, LTE connectivity

#6 Amazfit Cheetah 2 Ultra
3.8

Zepp OS feels smoother and more mature than before, but still trails Apple and Garmin polish in some reviewer opinions.

Pros: software smoothness, flashlight usefulness

Cons: sleep tracking accuracy, ECG functionality

#7 Polar Street X
3.5

The operating system itself was considered solid, with no major functional complaints, though the interface still drew criticism elsewhere.

Pros: workout tracking variety, flashlight usefulness

Cons: blood oxygen tracking, ECG functionality

#8 Amazfit Cheetah 2 Pro
3.1

The operating system experience was mixed: Zepp OS and Zepp app features worked, but reviewers called parts of the interface overloaded or bloated.

Pros: calorie tracking usefulness, durability

Cons: ECG functionality, size options

#9 Amazfit T-Rex Ultra 2
2.7

The operating-system experience was mixed to weak: useful features exist, but reviewers criticized the lack of premium polish and unfinished software story.

Pros: display quality, brightness

Cons: onboard music storage, size options