Galaxy Watch 9 charging: what the 3C filings confirm
Samsung’s Galaxy Watch 9 and Galaxy Watch Ultra 2 are upcoming flagship smartwatches whose 3C certifications confirm they will retain the same 10W charging speed as their predecessors, highlighting a pause in charging innovation even as other hardware and software features advance. Recent listings on China’s 3C regulatory database show models SM-L3550 and SM-L7150 rated for 5V/2A wireless charging, which equals 10W. These model numbers are widely linked to the Galaxy Watch 9 and Galaxy Watch Ultra 2, and the filings reference the EP-T1510 charger – the same adapter used with the Galaxy Watch 8 and Galaxy Watch Ultra. With Samsung expected to announce new watches alongside foldable phones around July 22, the documents strongly suggest that Galaxy Watch 9 charging speeds and Watch Ultra 2 specs in the power department will remain unchanged this generation.
Same power brick, same limit: how little has changed
The 3C entries make one thing clear: the charging hardware ceiling is identical to last year’s. Both upcoming models list support for 10W charging and compatibility with the EP-T1510 travel charger, mirroring the Galaxy Watch 8 and the first Galaxy Watch Ultra. According to The Tech Outlook, "both these devices will be supporting 10W charging, and they will also be compatible with the EP-T1510 charger model number." That means no new fast-charging puck, no bump in wattage, and likely similar charge times from empty to full. Even battery capacity appears flat on at least one model. Android Police reports that the Galaxy Watch 9 is expected to feature a 435mAh battery, the same capacity as the Galaxy Watch 8, which further hints at incremental rather than transformative endurance gains tied to efficiency rather than raw milliamp-hours.
What unchanged smartwatch charging speed means for users
For everyday users, keeping 10W caps several practical benefits. Faster smartwatch charging speed can reduce downtime between workouts, make sleep tracking easier when you need quick top-ups before bed, and give owners more flexibility when travelling with limited outlets. By holding at 10W, Samsung is effectively betting that its current balance of endurance and charge time is "good enough" for most wearers. Those coming from much older watches may still notice progress, but Galaxy Watch 8 or Galaxy Watch Ultra owners hoping for dramatically quicker refills are likely to be underwhelmed. The rumoured identical 435mAh battery on the Galaxy Watch 9 points to software and chipset efficiency as the main route to better battery life, instead of raw speed at the charger. In practice, meaningful improvement will depend on how much those optimisations cut background drain.
A flagship market where charging innovation is slowing
The regulatory filings highlight a broader pattern: flagship smartwatch charging technology is seeing slower change than displays, sensors, or software. While some rivals experiment with proprietary fast wireless charging solutions or more efficient coils, Samsung’s top-tier wearables continue with the same 10W ceiling across the Galaxy Watch 8, Galaxy Watch Ultra, and now the Galaxy Watch 9 and Watch Ultra 2. GSMArena notes that "the Galaxy Watch8 and Galaxy Watch Ultra had the same charging speed," and expresses hope that the new models will at least deliver better endurance. For buyers comparing devices, wireless charging comparison tables increasingly show similar wattage figures at the high end. That puts more pressure on brands to differentiate through battery life in days, health features, and app experience, rather than through headline charging numbers.
Samsung’s priorities: features first, charging later
Taken together, the filings suggest Samsung’s focus for this cycle is elsewhere. The company has already teased new health features arriving with upcoming Galaxy Watches through updates to its Samsung Health app, and leaks point to continuity in battery size, design language, and charger compatibility. That aligns with a strategy that prioritises sensors, software, and ecosystem integration over raw charging wattage. For some users, this will be a reasonable trade-off: if all-day battery life is reliable and health tracking improves, unchanged charging may not feel like a deal-breaker. For enthusiasts who upgrade yearly and expect flagships to push boundaries in every spec, the lack of progress in Galaxy Watch 9 charging and Galaxy Watch Ultra 2 specs around power delivery will look like stagnation. Their decision to upgrade may hinge on how compelling the new non-charging features prove at launch.
