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.

Google Keep

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

Google Keep brings note-taking to your wrist with 1 billion+ downloads and a 4.7★ rating, featuring voice memos, checklists, and seamless sync across all your WearOS devices.

Best for: Quick note capture, grocery lists, voice memos during workouts

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

WearOS Features

Capture thoughts and manage notes directly from your watch.

Voice Memos: Record voice notes with automatic transcription for hands-free note-taking.
Quick Capture: Create notes, lists, and reminders instantly from your wrist.
Tiles & Complications: Add Keep shortcuts to your watch face for one-tap access.
Instant Sync: Everything syncs automatically across phone, tablet, computer, and watch.

Quick Capture

Voice memos are perfect for capturing ideas during workouts or commutes when typing is inconvenient.

Compatibility

Detail	Value
Developer	Google LLC
Rating	4.7★ (2.16M reviews)
Downloads	1 billion+
Price	Free
Category	Productivity
App Size	~16 MB
Content Rating	PEGI 3
Last Updated	Dec 2025
Requires	`WearOS 3.0+`

Getting Started

Install Google Keep on your phone and WearOS watch from the Play Store.
Sign in with your Google account for automatic sync across all devices.
Add Keep tiles or complications to your watch for quick access.
Create your first note by tapping the + button or using voice input.
Organize notes with colors and labels for easy finding.
Set location-based reminders to see notes when you arrive at specific places.

Note Features

Organize your thoughts with powerful note-taking tools.

Voice Transcription: Speak naturally and Keep converts your words to searchable text.
Checklists: Create shopping lists and to-do items you can check off from your wrist.
Color Labels: Organize notes visually with colors for quick identification.
Location Reminders: Get reminded about notes when you arrive at the grocery store or office.

Shopping Made Easy

Create your grocery list on Keep and check off items as you shop without pulling out your phone.

Why Google Keep on WearOS

Google Ecosystem: Seamless integration with Gmail, Calendar, and Google Assistant.
Universal Sync: Start a note on your watch and continue on any device instantly.
Voice-First Design: Optimized for hands-free note capture perfect for smartwatches.
Battery Efficient: Minimal resource usage for all-day productivity without drain.

WearOS Features​

Quick Capture

Compatibility​

Getting Started​

Note Features​