Infinix Zero 5G vs Samsung Galaxy Watch3
Specs comparisonAdd up to three devices side by side to compare their full specifications, features, performance, battery, and key differences in one place. Make informed decisions and find the device that best suits your needs and budget. Search for a device in an empty slot to add it.
| 2 of 2 devices The best value in a row is marked Best | ||
|---|---|---|
| Brand | Infinix | Samsung |
| Versions | — | SM-R855F, SM-R845F (Global, LTE model); SM-R855U, SM-R845U (USA, LTE model); SM-R850, SM-R840 (Wi-Fi only) |
| Announced | 2022, February 08 | 2020, August 05 |
| Released | 2022, March 03 | 2020, August 06 |
| Availability | Available | Available |
| Technology | GSM / HSPA / LTE / 5G | GSM / HSPA / LTE |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Bands | 1, 2, 3, 4, 5, 7, 8, 17, 20, 28, 38, 40, 41, 66 - X68151, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40, 41, 66 - X6815B | 1, 3, 5, 7, 8, 20 |
| 5G Bands | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78, 79 SA/NSA/Sub6 - X68151, 28, 38, 41, 77, 78, 79 SA/NSA/Sub6 - X6815B | — |
| Speed | HSPA, LTE, 5G | HSPA, LTE |
| Dimensions | 168.7 x 76.5 x 8.8 mm(6.64 x 3.01 x 0.35 in) | 45mm: 45 x 46.2 x 11.1 mm41mm: 41 x 42.5 x 11.3 mm |
| Weight | 199 g (7.05 oz) | 53.8 g (45mm stainless steel), 48.2 g (41mm stainless steel), 43 g (45mm titanium) Best |
| Build | Glass front, plastic frame, plastic back | Glass front (Gorilla Glass DX), stainless steel 316L or titanium frame, rotating bezel |
| Stylus | No | — |
| SIM | Nano-SIM + Nano-SIM | eSIM (LTE models) |
| Protection / IP Rating | — | IP68 dust/water resistant, 5ATMMIL-STD-810G compliant |
| Display Type | IPS LCD | Super AMOLED |
| Display Size | 6.78 inches, 113.7 cm2 (~88.1% screen-to-body ratio) Best | 1.4 inches |
| Resolution | 1080 x 2460 pixels | 360 x 360 pixels |
| Pixel Density | ~388 ppi Best | ~364 ppi |
| Refresh Rate | 120Hz Best | 60Hz |
| Peak Brightness | 500 nits | — |
| Protection | — | Corning Gorilla Glass DX |
| Display Features | — | Always-On-Display |
| Operating System | Android | Tizen |
| OS Version | 11 | 5.5 |
| Update Support | Upgradable to Android 12 | — |
| User Interface | XOS 10.6 | — |
| Chipset | Mediatek Dimensity 900 (6 nm) | Exynos 9110 (10 nm) |
| CPU | Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) | Dual-core 1.15 GHz Cortex-A53 |
| GPU | Mali-G68 MC4 | Mali-T720 |
| RAM Options | 8GB | 1GB |
| Storage Options | 128GB | 4GB / 1GB RAM8GB / 1GB RAM |
| Storage Type | UFS 3.1 | eMMC |
| Card Slot | microSDXC (dedicated slot) | No |
| Cameras | Triple camera | — |
| Modules | 48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF13 MP, f/2.5, 50mm (telephoto), 1/3.1", 1.12µm, PDAF, 2x optical zoom2 MP | No Camera |
| Features | Quad-LED flashHDRpanorama | — |
| Video | 4K@30fps1080p@30/60fps | — |
| Cameras | Single camera | — |
| Modules | 16 MP, f/2.0, (wide), 1/2.76", 1.12µm | No Camera |
| Features | Dual-LED flash | — |
| Video | 1080p@30fps | — |
| Loudspeaker | Yes | Yes |
| Audio Jack | Yes | No |
| Audio Codec | — | Not Available |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct | Wi-Fi 802.11 b/g/n |
| Bluetooth | Yes | 5.0, A2DP, LE |
| GPS / Positioning | GPS | GPS, GLONASS, GALILEO, BDS |
| NFC | No | Yes |
| Radio | FM radio | No |
| USB | USB Type-C 2.0, OTG | No |
| Fingerprint | Yes, (side-mounted) | No |
| Face Unlock | Yes (2D face unlock) | No |
| Sensors | Accelerometer, Gyro, Proximity, Compass | Accelerometer, gyro, barometer, light, optical heart rate, electrical heart (ECG) |
| Other Features | — | ECG certifiedBlood pressure monitorCompatible with standard 22mm (45mm) / 20mm (41mm) strapsSizes: 41mm, 45mm; Bluetooth and LTE versions |
| Battery Type | Li-Po | Li-Ion |
| Battery Capacity | 5000 mAh Best | 340 mAh (45mm)247 mAh (41mm) |
| Wired Charging | 33W wired | N/A |
| Wireless Charging | No | Wireless (WPC-based) |
| Reverse Wireless Charging | 5W wired reverse charging | N/A |
| Colours | Cosmic Black, Skylight Orange, Horizon Blue | Mystic Bronze, Mystic Black, Mystic Silver: Stainless Steel; Mystic Black: Titanium |
| Models | X6815, X6815B | SM-R840, SM-R850, SM-R845F, SM-R855F, SM-R845U, SM-R855U |
| SAR | 0.95 W/kg (Head) 0.86 W/kg (Body) | — |
| SAR EU | 0.67 W/kg (Head) 0.97 W/kg (Body) | — |
These devices share the same listed specifications. Turn off “Show differences only” to see every row.
Most compared devices
The matchups our readers check most. Tap any pair to see the full side-by-side specs comparison.
- 16
Samsung Galaxy S26+
Samsung Galaxy S26Compare specs
Samsung Galaxy S26
Apple iPhone DuoCompare specs
Samsung Galaxy S26+
Samsung Galaxy S26 UltraCompare specs
Apple iPhone 17 Pro Max
Samsung Galaxy S26Compare specs
Apple iPhone 12
Apple iPhone 12 miniCompare specs
Apple iPhone 17 Pro Max
Apple iPhone DuoCompare specs












