Device hub · Fitness watches · Desk research
Google Pixel Watch 4
Pixel Watch 4 is Google’s leftover 41/45mm Wear OS 6 watch: 3,000-nit Actua 360, dual-frequency GPS, satellite SOS, and a 30/40-hour AOD table.
In short
Pixel Watch 4 is Google’s leftover 41/45mm Wear OS 6 watch: 3,000-nit Actua 360, dual-frequency GPS, satellite SOS, and a 30/40-hour AOD table. Storage is 32GB — Watch 5 moved to 64GB and Wear OS 7. Buy leftover Watch 4 if the discount is real and you have Android 11+. Skip it if you only have an iPhone or want Watch 5’s current software floor.
Product images
Placeholder — OEM press not licensedGoogle Pixel Watch 4
Credit: GadgetShowdown labeled placeholder (not a Google asset). View official product image
Google product images are copyrighted. Typical brand-asset terms do not give a commercial comparison site a clear redistribution license.
Studio still only. Manufacturer press JPEGs are not hosted here. See the Google product page for the real product photo.
Placeholder — OEM press not licensedGoogle Pixel Watch 4
Credit: GadgetShowdown labeled placeholder (not a Google asset). View official product image
Studio still only. Manufacturer press JPEGs are not hosted here. See the Google product page for the real product photo.
Who it is for
- Android 11+ owners who want last year’s Pixel Watch (Gemini raise-to-talk, dual-frequency GPS, satellite SOS) at a leftover ticket.
- Pixel Watch 3 owners who want the domed Actua 360, 3,000 nits, 32GB, and the 30/40-hour AOD table.
- People who will use Fitbit / Google Health naming and can accept Wear OS 6 rather than Watch 5’s Wear OS 7.
Who should skip it
- Anyone with only an iPhone. Store specs: most phones running Android 11.0 or newer; Google Account + Pixel Watch app.
- Shoppers who want Watch 5’s 64GB, Wear OS 7, or W5 Gen 2 Accelerated naming. Those are current-gen rows.
- Shoppers who want a days-class Garmin battery or Apple Ultra’s 50-hour table. Pixel’s long claims are still hour-class.
- People who want a 47–49mm titanium dive watch. This is 5 ATM / IP68 aluminum, not EN 13319 Ultra hardware.
Key differentiators
- First Pixel Watch with a physically curved Actua 360 panel (blog: 10% larger active area, 16% smaller bezels, 50% brighter 3,000 nits — Google claims).
- OEM battery table on the Store specs page: 41mm 325 mAh / 30 h AOD / 48 h Saver; 45mm 455 mAh / 40 h AOD / 72 h Saver. Quick Charge Dock: 15 min to 50% on both sizes.
- First Pixel Watch Store specs to list standalone satellite SOS (LTE SKU / Snapdragon W5 Gen 2).
- 32GB + Wear OS 6.0 + W5 Gen 2 (not Accelerated). Watch 5 is 64GB + Wear OS 7 + W5 Gen 2 Accelerated.
Caveats
- Every numeric battery, nits, “25% longer / faster,” and “most accurate sleep / GPS” line is a Google claim. GadgetShowdown has not lab-tested Pixel Watch 4.
- Google Help 12651869 mixes generations. Prefer the dedicated Store specs page for Watch 4 numbers. Do not copy Watch 5’s 332 / 465 mAh or 64GB onto this hub.
- ECG, SpO2, cEDA, and satellite SOS are region-limited.
- Blog “first smartwatch ever to support standalone Satellite Communication” and “only smartwatch to detect a loss of pulse” are Google marketing sentences.
Watch-category specs
Same manufacturer rows on every watch page.
| Attribute | Value | Source / note |
|---|---|---|
| Display size | 41mm or 45mm case; 12.3mm height both sizes. Blog: 10% larger active area vs prior gen (Google claim; no sq mm on the Store table) | Google Store Pixel Watch 4 specs; Pixel blog 2025-08-20 |
| Display type | Domed Actua 360 AMOLED LTPO, DCI-P3, custom 3D Corning Gorilla Glass 5 | Google Store Pixel Watch 4 specs |
| Display resolution | 320 ppi (pixel grid not published as width × height on the Store table) | Google Store Pixel Watch 4 specs |
| Peak brightness (OEM) | Up to 3,000 nits peak; 1 nit minimum (AOD); 1–60 Hz | Google Store Pixel Watch 4 specs; Pixel blog 2025-08-20Manufacturer peak-nits claim. Blog: “50% brighter 3000 nit display.” |
| Always-On display | Yes — AOD; battery claims are published with AOD on | Google Store Pixel Watch 4 specs |
| Case size(s) | 41mm and 45mm | Google Store Pixel Watch 4 specs |
| Case material | 100% recycled aluminum housing | Google Store Pixel Watch 4 specs |
| Case dimensions | 41mm or 45mm diameter × 12.3mm height | Google Store Pixel Watch 4 specs |
| Weight | 41mm: 31.0 g; 45mm: 36.7 g (without band) | Google Store Pixel Watch 4 specsSame case-only grams Watch 5 later printed. mAh is not the same — Watch 4 is 325 / 455. |
| Finishes | Polished Silver / Iris; Satin Moonstone / Moonstone; Polished Silver / Porcelain; Champagne Gold / Lemongrass; Matte Black / Obsidian (Active Band pairings on the Store table) | Google Store Pixel Watch 4 specs |
| Chip / processor | Qualcomm Snapdragon W5 Gen 2; Cortex-M55 coprocessor | Google Store Pixel Watch 4 specs; Pixel blog 2025-08-20Not “W5 Gen 2 Accelerated” — that naming is Pixel Watch 5. Blog: “25% faster at half the power” for the ML coprocessor — OEM claim. |
| On-device storage | 32GB eMMC flash; 2GB SDRAM | Google Store Pixel Watch 4 specsWatch 5 Help lists 64GB and does not reprint RAM. Do not blend. |
| Battery — normal use (OEM) | 41mm: 325 mAh, up to 30 hours with AOD; 45mm: 455 mAh, up to 40 hours with AOD | Google Store Pixel Watch 4 specsBlog: “25% longer battery life.” Watch 5 later printed 332 / 465 mAh on the same 30 / 40-hour AOD claims. |
| Battery — low-power / saver (OEM) | Battery Saver: up to 48 hours (41mm) / 72 hours (45mm). Blog also said “two (41mm) and three days (45mm)” | Google Store Pixel Watch 4 specs; Pixel blog 2025-08-20 |
| Battery — GPS / outdoor workout (OEM) | Not published | Google Store Pixel Watch 4 specs |
| Charging (OEM) | In-box Quick Charge Dock. 41mm: ~15 min to 50%, ~25 min to 80%, ~45 min to 100%. 45mm: ~15 / 30 / 60 min. Blog: 0–50% in 15 minutes; “25% faster than before” | Google Store Pixel Watch 4 specs; Pixel blog 2025-08-20 |
| Water resistance | 5 ATM and IP68. Blog: water-resistant up to 50 meters | Google Store Pixel Watch 4 specs; Pixel blog 2025-08-20 |
| GNSS / GPS | Dual-frequency GPS: GPS, Galileo, GLONASS | Google Store Pixel Watch 4 specsStore table does not add BeiDou / QZSS on this leftover page. Blog: “most accurate route tracking” — OEM claim. |
| Cellular | 4G LTE and UMTS on LTE SKUs (plan required). Satellite SOS listed on the same connectivity block | Google Store Pixel Watch 4 specs |
| Heart rate | Multi-path optical heart rate sensor | Google Store Pixel Watch 4 specs |
| Blood oxygen (SpO2) | Red + infrared SpO2 sensors | Google Store Pixel Watch 4 specs |
| Temperature sensing | Far-field skin temperature sensor. Blog: new sensor flags when you are outside your personal range | Google Store Pixel Watch 4 specs; Pixel blog 2025-08-20 |
| ECG | Multipurpose electrical sensors compatible with the ECG app | Google Store Pixel Watch 4 specs |
| Sleep tracking | Blog: ML sleep-cycle classification (“18% more accurate” — OEM claim). Store table lists the sensors, not a named Sleep Score row | Pixel blog 2025-08-20; Google Store specs sensors |
| Sport / workout profiles (OEM) | Blog: 50+ exercise modes including pickleball and basketball; automatic activity detection; real-time bike stats to the Fitbit app | Pixel blog 2025-08-20 |
| Other sensors | Compass, altimeter, barometer, magnetometer, 3-axis accelerometer, gyroscope, ambient light, cEDA skin-conductance, electrical sensors, optical HR, SpO2, skin temp | Google Store Pixel Watch 4 specs |
| Durability / ingress | Gorilla Glass 5; 5 ATM; IP68. Blog: first serviceable Pixel Watch (replaceable battery and display) — Google claim | Google Store Pixel Watch 4 specs; Pixel blog 2025-08-20 |
| Safety / incident alerts | Satellite SOS on the Store connectivity block. Blog also markets Loss of Pulse as a Pixel Watch family claim | Google Store Pixel Watch 4 specs; Pixel blog 2025-08-20 |
| Operating system | Wear OS 6.0 | Google Store Pixel Watch 4 specsWatch 5 is Wear OS 7.0. Do not write that leftover Watch 4 launched on Wear OS 7. |
| Phone compatibility | Most phones running Android 11.0 or newer. Google Account + Pixel Watch app | Google Store Pixel Watch 4 specsWatch 5 Help later raised the floor to Android 12. Quote this leftover Store row. |
| Wireless (Wi-Fi / Bluetooth) | Bluetooth 6.0; Wi-Fi 802.11a/b/g/n/ac/ax (2.4 + 5GHz); UWB; NFC | Google Store Pixel Watch 4 specs |
| NFC / contactless payments | NFC (Google Wallet / issuer support — confirm locally; do not write Apple Pay) | Google Store Pixel Watch 4 specs |
| Band / strap system | Pixel Watch lugs; box includes Active Band small + large. 41mm small 130–175mm / large 165–210mm; 45mm small 150–185mm / large 165–215mm | Google Store Pixel Watch 4 specs |
| US MSRP (launch) | 41mm: $349 Wi-Fi / $449 LTE. 45mm: $399 Wi-Fi / $499 LTE (blog: “remains the same as Pixel Watch 3”) | Pixel blog, 2025-08-20 |
| Price band | Flagship leftover Wear OS ($350–$500 US launch) | Derived from $349 start |
| Announced | 20 August 2025 (Made by Google 2025) | Pixel blog, 2025-08-20 |
| Availability | Pre-order from 20 August 2025; shelves from 9 October 2025; leftover after Pixel Watch 5 (2026) | Pixel blog, 2025-08-20 |
Google Pixel Watch 4 extras
Unique to this line or SKU.
| Attribute | Value | Source / note |
|---|---|---|
| Size note | Caption both sizes. Battery, mAh, and charge curves change. Blog “40 hours” is the 45mm AOD claim | Google Store Pixel Watch 4 specs |
| Satellite SOS | Store connectivity: Satellite SOS communication. Blog: first-ever smartwatch with standalone emergency satellite communications on the LTE model, powered by Snapdragon W5 Gen 2 — Google claim | Google Store Pixel Watch 4 specs; Pixel blog 2025-08-20 |
| cEDA / body response | Electrical skin-conductance sensor for body-response tracking | Google Store Pixel Watch 4 specs |
| Gemini | Blog: Raise to Talk Gemini on-wrist. Availability / language limits still apply | Pixel blog 2025-08-20 |
| Loss of Pulse | Blog markets Loss of Pulse as a Pixel Watch family claim (“only smartwatch…”) — treat as OEM marketing, not a unique Watch 4 hardware row we independently verified | Pixel blog 2025-08-20 |
| Ultra-Wideband | UWB listed on the Store connectivity block | Google Store Pixel Watch 4 specs |
| Controls | Side button; haptic crown; Gen 3 Premium haptics | Google Store Pixel Watch 4 specs |
| In the box | Pixel Watch 4; Active Band small + large; Quick Charge Dock; Quick Start Guide | Google Store Pixel Watch 4 specs |
| iPhone pairing | Not supported on the Store compatibility row | Google Store Pixel Watch 4 specs |
| Versus Pixel Watch 5 (desk) | Same 41/45mm grams and 30/40-hour AOD claims. Watch 4: 325/455 mAh, 32GB, Wear OS 6, W5 Gen 2, Android 11. Watch 5: 332/465 mAh, 64GB, Wear OS 7, W5 Gen 2 Accelerated, Android 12 | Google Store Pixel Watch 4 specs vs Pixel Watch 5 Help |
Overview
Pixel Watch 4 is the August 2025 Wear OS flagship (shelves 9 October 2025). The US Google Store specs page is the live leftover source. The physical product is a 41mm or 45mm 100% recycled-aluminum round watch, 12.3mm thick, with a haptic crown, side button, and a physically curved Actua 360 panel.
This hub exists so leftover Pixel vs current Pixel writers can cite the Watch 4 Store table instead of blending Watch 5’s 64GB / Wear OS 7 onto last year’s silicon. The first table is watches-v1.
We do not claim we wore this watch.
Display
Domed Actua 360 AMOLED LTPO, 320 ppi, up to 3,000 nits / 1 nit AOD, 1–60 Hz, Gorilla Glass 5. Blog 10% / 16% / 50% figures stay Google claims.
Health and sensors
Multi-path optical HR, ECG-compatible electrical sensors, SpO2, far-field skin temperature, cEDA. Blog sleep-accuracy and Loss of Pulse lines stay marketing.
Sleep tracking
Keep the category key. Blog claims 18% more accurate cycle classification — OEM, not a lab score.
Battery and charging (OEM table only)
| Size | Cell | AOD | Battery Saver | 50% / 80% / 100% |
|---|---|---|---|---|
| 41mm | 325 mAh | 30 h | 48 h | ~15 / 25 / 45 min |
| 45mm | 455 mAh | 40 h | 72 h | ~15 / 30 / 60 min |
In the box: Quick Charge Dock. Adapter sold separately is a Watch 5 Help note — Watch 4 Store “What’s in the box” lists the dock, not a wall adapter.
How this page compares on a desk
| Desk fact (OEM) | Pixel Watch 4 | Pixel Watch 5 |
|---|---|---|
| OS | Wear OS 6.0 | Wear OS 7.0 |
| Storage | 32GB / 2GB RAM | 64GB |
| Chip | W5 Gen 2 | W5 Gen 2 Accelerated |
| Cells | 325 / 455 mAh | 332 / 465 mAh |
| AOD hours | 30 / 40 h | 30 / 40 h |
| Phone floor | Android 11 | Android 12 |
| Launch start | $349 (41mm Wi-Fi) | $399.99 (Store start) |
Price and what not to invent
$349 / $449 / $399 / $499 launch matrix from the 20 August 2025 blog. Do not invent a GPS-workout hour or blend Watch 5 mAh / 64GB.
Sources
- Google Store — Pixel Watch 4 specs — accessed 2026-09-19
- Google Pixel blog — Pixel Watch 4: Design upgrades, new fitness features and expanded AI — accessed 2026-09-19
- Google Store — Pixel Watch 4 product page — accessed 2026-09-19
Frequently asked questions
Does Pixel Watch 4 have satellite SOS?
Yes on the Store connectivity block. The 2025 blog called the LTE model the first smartwatch with standalone emergency satellite communications. That is a Google sentence. Availability still varies.
Is this the same watch as Pixel Watch 5?
No. Watch 4 is Wear OS 6, 32GB, 325/455 mAh, Snapdragon W5 Gen 2, Android 11. Watch 5 is Wear OS 7, 64GB, 332/465 mAh, W5 Gen 2 Accelerated, Android 12. Grams and the 30/40-hour AOD claims match — do not blend the rest.
Does it work with iPhone?
Not on the Store compatibility row. Most phones running Android 11.0 or newer, plus a Google Account and the Pixel Watch app.
What are the launch prices?
Blog 20 August 2025: 41mm $349 Wi-Fi / $449 LTE; 45mm $399 / $499. Leftover street tickets change.
How long does the battery last?
Store specs: 41mm up to 30 hours AOD / 48 hours Battery Saver (325 mAh). 45mm up to 40 hours AOD / 72 hours Saver (455 mAh). Outdoor-workout hours are not on that table.
Official product page: Google Pixel Watch 4. Tech specs: Google Pixel Watch 4 specs.