How do I choose between the 41mm and 45mm Pixel Watch 4 sizes?

Both sizes offer identical breakthrough features including satellite SOS, user-serviceable design, and Gemini AI coaching. The 45mm provides larger display and superior battery life (40 hours vs 30 hours), fitting wrists 150-215mm circumference. The 41mm offers classic, lighter profile fitting wrists 130-210mm circumference. Choice depends on display preference, battery needs, and wrist fit.

What breakthrough features does Pixel Watch 4 offer that competitors cannot match?

Four revolutionary capabilities no competitor offers: (1) Satellite SOS emergency communication enabling distress signals without cellular coverage, (2) User-serviceable design with replaceable battery and display components, (3) Actua 360 domed display with 3000 nits brightness, (4) Gemini AI personal health coach with 24/7 guidance and raise-to-talk activation.

Which phones are compatible with the Pixel Watch 4?

Compatible with Google Pixel and Android phones running Android 11.0 or newer. Optimal experience achieved with Pixel phones for exclusive satellite emergency communication, Gemini AI integration, and camera remote control capabilities. Google Account required for full feature access.

How does the satellite SOS emergency communication work?

Industry-first capability enabling distress signals and emergency service communication in remote locations without cellular or Wi-Fi coverage. Uses advanced satellite network technology with 2-year free service included and global coverage. Functions in areas where no other smartwatch can operate.

Is the Pixel Watch 4 water resistant?

Yes, features comprehensive water resistance with 50 meters (5 ATM) depth capability and IP68 protection. Supports ocean swimming, pool activities, showering, water sports, and complete submersion protection with Water Lock Mode for automatic water ejection.

How does the revolutionary repairability design work?

First user-serviceable Pixel Watch with replaceable battery and display components. Enables cost-effective maintenance at fraction of full device cost, supporting 5+ year usage with component replacement. User-accessible battery replacement takes 15-30 minutes with official kits. Display replacement available through professional service network.

What advanced health features are available on Pixel Watch 4?

Breakthrough Loss of Pulse Detection (FDA-cleared), Gemini AI health coach with 24/7 guidance, 18% more accurate sleep tracking, multi-path heart rate sensor, skin temperature monitoring, ECG readings, and continuous SpO2 monitoring. Includes 6-month Fitbit Premium trial for advanced analytics.

Do I need a phone to use the Pixel Watch 4?

Initial pairing requires compatible Android phone. LTE model enables independent operation for calls, texts, music, Google Pay, and Gemini Assistant. Bluetooth/Wi-Fi model requires phone proximity or Wi-Fi connection. Both models include satellite SOS emergency communication operating independently.

InBody

Name: Google Pixel Watch 4
Brand: Google
Availability: PreOrder
Rating: 4.8 (1250 reviews)

InBody brings body composition analysis to your WearOS watch with 5 million+ downloads and a 3.6★ rating, featuring health metrics, activity tracking, and test result viewing.

Best for: Body composition tracking, fitness progress, health monitoring

Download: Play Store | Phone: Phone required for setup | Offline: Partial (cached results) | Battery: Low

WearOS Features

View your health data directly from your wrist.

Test Results: View InBody body composition results with watch complications.
Activity Tracking: Monitor daily calories, steps, and active minutes.
Sleep Monitoring: Track sleep time and quality with InBodyBAND connection.
Quick Start: Initiate InBody tests directly from your watch.

Health Tracking

Connect with InBody Dial for convenient at-home body composition testing.

Compatibility

Detail	Value
Developer	InBody
Rating	3.6★ (10.9K reviews)
Downloads	5 million+
Price	Free
Category	Health & Fitness
App Size	~40 MB
Content Rating	PEGI 3
Last Updated	Dec 2025
Requires	`Galaxy Watch 4+`

Getting Started

Install InBody on your phone and WearOS watch from the Play Store.
Create an InBody account or sign in to existing account.
Connect your InBody device (InBody Dial, InLab, or InBodyBAND).
Complete an InBody test at home or at a facility.
View results on your watch using the InBody complication.
Track progress and compare with previous measurements.

Health Features

Comprehensive body composition and wellness tracking.

Body Analysis: Review detailed body composition metrics and graphs.
Calorie Tracking: Monitor consumed and spent calories daily.
Ranking System: Compare InBody scores with friends and community.
Progress Reports: View changes in body composition over weeks and months.

Fitness Journey

Track your body composition changes over time with detailed historical data.

Why InBody on WearOS

Professional Grade: Medical-grade body composition analysis technology.
Device Integration: Works with InBody Dial, InLab, and InBodyBAND.
Wrist Access: View test results and start tests from your watch.
Complete Health Picture: Body composition, activity, sleep, and calories.

WearOS Features​

Health Tracking

Compatibility​

Getting Started​

Health Features​