Pixel Watch 4 Full Specs Leak: Bigger Batteries, 3,000-Nit Display, and Gemini AI Integration

The most detailed Pixel Watch 4 spec leak yet has surfaced, revealing significant upgrades across battery life, display, and AI capabilities. The leak, sourced from marketing materials ahead of launch, confirms two sizes and a Gemini-first approach to smartwatch AI.

Leaked Specifications

• Sizes: 41mm and 45mm (same as Pixel Watch 3)
• Display: Actua 360 with 3,000-nit peak brightness — matching the Samsung Galaxy Watch Ultra 2 leak
• Processor: Snapdragon W5+ Gen 1 with new M55 co-processor for always-on health tracking
• Battery: 41mm delivers up to 30 hours; 45mm up to 40 hours with always-on display enabled
• Charging: 25% faster charging than Pixel Watch 3
• Health: Dual-frequency GPS, ECG, blood oxygen, HRV, 40+ exercise modes
• AI: Deep Gemini integration — raise your wrist to talk to Gemini for AI-powered responses
• Safety: Satellite SOS on LTE model — previously found only on Apple Watch Ultra 3 and Garmin Fenix 8 Pro

How It Compares

The 40-hour battery on the 45mm model would be a major improvement over the Pixel Watch 3's 24-hour rating, though still short of the Galaxy Watch Ultra's 60+ hours. The 3,000-nit display matches or exceeds any current smartwatch. Satellite SOS brings the Pixel Watch into parity with the Apple Watch Ultra 3 for safety features.

What This Means for Buyers

If you're an Android user eyeing the Pixel Watch 3 at $247 on Amazon, consider whether the Pixel Watch 4's upgrades — particularly the battery improvement and Gemini AI — justify waiting. For those who need a watch now, the Pixel Watch 3 at 29% off remains great value. Apple users should stick with the Apple Watch Series 11 at $259. Compare all options in our smartwatch guide.