TL;DR
OnePlus has discounted the Watch 3 to $300 on Amazon in Emerald Titanium and Obsidian Titanium. The Wear OS 5 device uses silicon-carbon cells and a dual-processor approach to deliver up to five days of normal use or as much as 16 days in power-saving mode.
What happened
Wired reported that the OnePlus Watch 3 is currently discounted to $300 on Amazon in both Emerald Titanium and Obsidian Titanium finishes, down from a listed $350. The story highlights the model's battery innovations: a 631 mAh silicon-carbon cell housed in a relatively slim bezel and a dual-processor/software arrangement that splits tasks between a Qualcomm chip for Wear OS 5 functions and a BES2800 chip for background duties. OnePlus advertises about five days of battery life in normal use and up to 16 days in a power-saving mode. The watch features a 1.5-inch AMOLED display and includes standard smartwatch capabilities such as fitness tracking, navigation, phone calls and texting. It also has ECG hardware, but Wired notes that electrocardiogram functionality was not authorized for use in the United States or Canada. The review describes smooth performance with no stuttering and frames the Watch 3 as a stronger competitor in the Wear OS field.
Why it matters
- Longer battery life reduces the need to charge nightly, addressing a common smartwatch pain point.
- Silicon-carbon cells and a split-processing design indicate a different engineering approach to extending runtime on small devices.
- Up to 16 days in low-power mode could be useful for trips or periods without easy access to charging.
- Lack of ECG approval in the US and Canada limits medical-monitoring functionality for users in those markets.
Key facts
- Current advertised sale price on Amazon: $300 (down from $350 as listed).
- Available colorways mentioned: Emerald Titanium and Obsidian Titanium.
- Battery: 631 mAh silicon-carbon cell housed in the watch bezel.
- Architecture: Qualcomm chip handles Wear OS 5 features while a BES2800 chip runs background tasks.
- Claimed battery life: about five days in normal mode; up to 16 days in power-saving mode.
- Display: 1.5-inch AMOLED.
- Core features: fitness tracking, navigation, phone calls, and texting.
- Health sensors include heart rate monitoring, sleep tracking, fall detection, and ECG hardware (ECG not authorized for use in the US or Canada).
- Wired's hands-on noted smooth performance with no stuttering.
What to watch next
- Whether OnePlus obtains ECG approval for use in the United States or Canada: not confirmed in the source.
- How long the current $300 discount will remain available on Amazon: not confirmed in the source.
- Real-world battery endurance over weeks and months of ownership (long-term degradation and day-to-day performance): not confirmed in the source.
Quick glossary
- Silicon-carbon battery: A battery chemistry that replaces some graphite with silicon to increase capacity; specifics vary by manufacturer.
- Wear OS: Google's operating system for wearable devices, supporting apps, notifications, and integrations with Android and other services.
- BES2800: A low-power system-on-chip commonly used to handle background tasks and sensors in wearable devices (generic description).
- AMOLED: A type of display technology (Active Matrix Organic Light-Emitting Diode) known for deep blacks and high contrast.
- ECG (electrocardiogram): A measurement of the heart's electrical activity used to detect certain cardiac conditions; regulatory approval is required for medical use in many countries.
Reader FAQ
How much does the OnePlus Watch 3 cost right now?
Wired reports it is currently marked down to $300 on Amazon in Emerald Titanium and Obsidian Titanium.
What battery life can I expect?
OnePlus claims roughly five days of normal use and up to 16 days in a power-saving mode.
Does the Watch 3 provide ECG functionality in the US or Canada?
No — the article states ECG capability was not approved for use in the United States or Canada.
Does the watch run Wear OS?
Yes; the device runs Wear OS 5 on a Qualcomm processor, while a separate BES2800 chip handles background tasks.
BRAD BOURQUE GEAR JAN 15, 2026 2:24 PM The OnePlus Watch 3 Is $50 Off Save some cash on this Wear OS smartwatch with a revolutionary battery that can go…
Sources
- Save $50 on the OnePlus Watch 3, Which Has Revolutionary Battery Tech
- Get the OnePlus Watch 3
- One of our favorite smartwatches of 2025 is on sale for $50 …
- OnePlus Watch 3 Obsidian Titanium, 32GB, 120-Hour …
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