Water Depth
50 m
Resolution
396 x 396 px
Samsung Galaxy Watch 4 LTE 40mm features 1.2" display, 247 mAh battery.
2" screen. Against the Watch8 LTE 44mm, has a more compact 1.2" screen. Compared to the Watch7 LTE 44mm, the Watch 4 LTE 40mm has a more compact 1.2" screen.
Design
| Screen Size i | 1.2" (43 others) |
| Display Type i | OLED/AMOLED (306 others) |
| Water resistance i | Waterproof (292 others) |
| Atm rating i | 5 ATM (199 others) |
| Ingress protection (ip) rating i | IP68 (136 others) |
| Waterproof depth rating i | 50 m (215 others) |
| Always on display i | ✔ (295 others) |
| Pixel Density i | 455 ppi (5 others) |
| Resolution i | 396 x 396 px (7 others) |
Sensors
| Monitors Blood Oxygenation Levels i | ✔ (273 others) |
| Has A Heart Rate Monitor i | ✔ (378 others) |
| Has gps i | ✔ (314 others) |
| Has an accelerometer i | ✔ (406 others) |
| Has A Temperature Sensor i | ✖ |
| Has a compass i | ✔ (284 others) |
| Has A Barometer i | ✔ (242 others) |
| Has a gyroscope i | ✔ (291 others) |
| Has A Cadence Sensor i | ✖ |
Activity tracking
| Tracks Your Sleep i | ✔ (377 others) |
| Tracks Distance i | ✔ (386 others) |
| Tracks Steps Taken i | ✔ (414 others) |
| Measures Pace i | ✔ (346 others) |
| Provides Sleep Reports i | ✔ (369 others) |
| Detects Activities Automatically i | ✔ (351 others) |
| Has A Route Tracker i | ✔ (316 others) |
| Tracks Elevation i | ✔ (289 others) |
| Has multi sport mode i | ✔ (200 others) |
Connectivity
| Has a cellular module i | ✔ (104 others) |
| Is compatible with ios i | ✖ |
| Is compatible with android i | ✔ (390 others) |
| Bluetooth Version i | 5 (104 others) |
| Supports wi fi i | ✔ (221 others) |
| Wi fi version i | Wi-Fi 4 (802.11n) (149 others) |
| Supports ant+ i | ✖ |
| Sim cards i | 1 eSIM (99 others) |
| Has nfc i | ✔ (234 others) |
Battery
| Battery Life i | 2 days (41 others) |
| Battery Power i | 247 mAh (8 others) |
| Charge time i | 2 hours (81 others) |
| Battery life in power save mode i | 40 hours (2 others) |
| Has wireless charging i | ✔ (164 others) |
| Has a rechargeable battery i | ✔ (404 others) |
| Has A Solar Power Battery i | ✖ |
App & Software
| Provides Activity Reports i | ✔ (393 others) |
| Has Inactivity Alerts i | ✔ (334 others) |
| Counts How Many Calories You've Burned i | ✔ (396 others) |
| Has Goal Setting i | ✔ (381 others) |
| Has Achievements i | ✔ (377 others) |
| Free App i | ✔ (350 others) |
| Has Exercise Diary i | ✔ (347 others) |
| Ad free i | ✔ (308 others) |
| Has Coaching i | ✔ (208 others) |
Miscellaneous
| Has a battery level indicator i | ✔ (400 others) |
| Has aptx i | ✖ |
| Has an ambient light sensor i | ✔ (2 others) |
| Has Auto Pause i | ✔ (214 others) |
| Has Passcode i | ✔ (214 others) |
| Compatible With Smart Scales i | ✔ (209 others) |
| Compatible With External Heart Rate Monitors i | ✔ (232 others) |
| Is compatible with windows i | ✖ |
| Has an external memory slot i | ✖ |
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Frequently Asked Questions
What is the battery life in power save mode of the Samsung Galaxy Watch 4 LTE 40mm?
At 40 hours, the Samsung Galaxy Watch 4 LTE 40mm is 91% below the category average for battery life in power save mode, ranking #68 out of 84 — see ranking smartwatch products.
What is the battery life of the Samsung Galaxy Watch 4 LTE 40mm?
At 2 days, the Samsung Galaxy Watch 4 LTE 40mm is 85% below the category average for battery life, ranking #286 out of 389 — see ranking smartwatch products.
What is the pixel density of the Samsung Galaxy Watch 4 LTE 40mm?
At 455 ppi, the Samsung Galaxy Watch 4 LTE 40mm is 37% above the category average for pixel density, ranking #37 out of 384 — see ranking smartwatch products.
How big is the Samsung Galaxy Watch 4 LTE 40mm battery?
At 247 mAh, the Samsung Galaxy Watch 4 LTE 40mm is 34% below the category average for battery capacity, ranking #266 out of 318 — see ranking smartwatch products.
How big is the Samsung Galaxy Watch 4 LTE 40mm screen?
At 1.2", the Samsung Galaxy Watch 4 LTE 40mm is 18% below the category average for screen size, ranking #333 out of 402 — see ranking smartwatch products.
How long does the Samsung Galaxy Watch 4 LTE 40mm take to charge?
At 2 hours, the Samsung Galaxy Watch 4 LTE 40mm is 14% above the category average for charge time, ranking #79 out of 180 — see ranking smartwatch products.
What is the water resistance rating of the Samsung Galaxy Watch 4 LTE 40mm?
At 5 ATM, the Samsung Galaxy Watch 4 LTE 40mm is 13% below the category average for ATM water resistance rating, ranking #34 out of 233 — see ranking smartwatch products.
Does the Samsung Galaxy Watch 4 LTE 40mm have wireless charging?
Yes, the Samsung Galaxy Watch 4 LTE 40mm has wireless charging. This feature is found in 44% of smartwatches.
How does it compare?
How does the Samsung Galaxy Watch 4 LTE 40mm's battery capacity compare to similar smartwatchess?
At 247 mAh, the Samsung Galaxy Watch 4 LTE 40mm trails the Huawei Watch 2 (420 mAh) by 41%.
How does the Samsung Galaxy Watch 4 LTE 40mm's pixel density compare to similar smartwatchess?
At 455 ppi, the Samsung Galaxy Watch 4 LTE 40mm leads the Huawei Watch 2 (326 ppi) by 28%.
How does the Samsung Galaxy Watch 4 LTE 40mm's charge time compare to similar smartwatchess?
At 2 hours, the Samsung Galaxy Watch 4 LTE 40mm trails the Huawei Watch 2 (2018) (1.5 hours) by 25%.