Garmin Approach S50 – model operating system family ↗
Releaseddeveloper.garmin.com · Last verified 2026-10-31
Model/SKU-specific evidence only; release month references are not fabricated first worldwide retail dates.
Garmin Forerunner 55
Proprietary system · Released Unknown · Manufacturer model/family reference; regional rollout varies
Security support ends
Unknown
Unknown
No verified support end date has been recorded.
- OS support ends
- No separate date specified
- Last verified
- 2026-10-31
- Region
- Manufacturer model/family reference; regional rollout varies
No separate final major version release date is specified. Security support ends separately.
Support commitment
Garmin Forerunner 55 · Support commitment
- Major OS upgrades
- Unknown
- OS support (years)
- Not separately specified
- Security support (years)
- 2
- Original OS version
- Unknown
- Verified OS version
- 11.03
- Last expected major version
- Unknown
- Update frequency
- Unknown
- Policy verified
- 2026-10-31
No separate final major version release date is specified. Security support ends separately.
Notes
Manufacturer time/model reference: Exact release date unverified. Source: https://developer.garmin.com/connect-iq/compatible-devices/. Sports/smartwatch; AnTuTu not applicable. Factory firmware and promised future major-upgrade count unverified. Verified firmware is the exact Japanese model-list release dated 2025/12/03; not a promise of immediate availability for every global SKU. Garmin general minimum security commitment is two years from first sale, not an actual endpoint. Connect IQ API level is application compatibility, not watch firmware. Record represents the named family; image shows one variant. Size/colour/strap/Music variants are grouped; separately named quatix/tactix/Enduro devices do not inherit data. No exact first worldwide retail day asserted. Unknown is not zero upgrades or ended support.
Sources
Image source ↗ · Garmin
Manufacturer product image, resized.
Sources substantiate only the indicated claims; missing values cannot be inferred from them.
Model support reference; unknowns explicitly noted ↗
Support commitmentwww.garmin.com · Last verified 2026-10-31
Model/SKU-specific evidence only; release month references are not fabricated first worldwide retail dates.
Garmin Approach S50 – manufacturer-listed firmware version ↗
Verified OS versionwww.garmin.co.jp · Last verified 2026-10-31
Model/SKU-specific evidence only; release month references are not fabricated first worldwide retail dates.