Apple
Apple Watch Series 10 (42mm)
$399
Released 2024-09
Best Smartwatches · head-to-head
Apple Watch Series 10 (42mm) vs OnePlus Watch 3
A sourced, side-by-side comparison. OnePlus Watch 3 is cheaper at $330. Every spec and price links to its source.
OnePlus
OnePlus Watch 3
$330Cheaper
Released 2025-04
Which is better: the Apple Watch Series 10 (42mm) or OnePlus Watch 3?
The Apple Watch Series 10 (42mm) wins 1 of the 1 specs we compare head to head; the other wins 0. The OnePlus Watch 3 is the cheaper at $330. Get the Apple Watch Series 10 (42mm) for the stronger spec sheet, the OnePlus Watch 3 to spend less.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Apple Watch Series 10 (42mm) | OnePlus Watch 3 |
|---|---|---|
| US price | $399 MSRP, 42mm aluminum GPS | $330 MSRP, US launch price |
| Brand | Apple | OnePlus |
| Released | 2024-09 | 2025-04 |
| Case size (mm) | 42 | 47 |
| Display type | LTPO OLED | LTPO AMOLED |
| Battery hr | 18 | 120 |
| Gps | Yes | Yes |
| Lte option | Yes | No |
| Water resistance (m) | 50 | 50 |
| OS | watchOS 11 | Wear OS 5 |
| Ecg | Yes | No |
| Weight (g) | 30 | 50 |
| Release | 2024-09 | 2025-04 |
Sources — Apple Watch Series 10 (42mm): dcrainmaker.com (verified 2026-06-15). OnePlus Watch 3: androidcentral.com (verified 2026-06-15).
What's the difference between the Apple Watch Series 10 (42mm) and OnePlus Watch 3?
Where the two actually differ on the specs we track (7 of 9). Matching specs are omitted.
- Case size (mm): Apple Watch Series 10 (42mm) 42 vs OnePlus Watch 3 47
- Display type: Apple Watch Series 10 (42mm) LTPO OLED vs OnePlus Watch 3 LTPO AMOLED
- Battery hr: Apple Watch Series 10 (42mm) 18 vs OnePlus Watch 3 120
- Lte option: Apple Watch Series 10 (42mm) true vs OnePlus Watch 3 false
- OS: Apple Watch Series 10 (42mm) watchOS 11 vs OnePlus Watch 3 Wear OS 5
- Ecg: Apple Watch Series 10 (42mm) true vs OnePlus Watch 3 false
- Weight (g): Apple Watch Series 10 (42mm) 30 vs OnePlus Watch 3 50
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Apple Watch Series 10 (42mm)
Four whitelisted testers (Engadget, Tom's Guide, TechRadar, DC Rainmaker) rate the Series 10 the best Apple Watch for iPhone owners, praising the thinner, lighter build and larger wide-angle display. All flag flat 18-hour battery life and the US-disabled Blood Oxygen app. Reviews are hands-on, not lab-benched; Engadget tested the 42mm while TechRadar and DC Rainmaker used 46mm units. (4 sourced reviews.)
Praised: Thinner, lighter, more comfortable build (9.7mm, ~10% lighter); Larger wide-angle OLED display, easier to read off-angle; Faster charging (80% in ~30 minutes).
Flagged: Same 18-hour battery life, no runtime improvement; Blood Oxygen app disabled in US (Masimo patent dispute); S10 chip delivers no noticeable performance gain over S9.
OnePlus Watch 3
No sourced tester review yet.