Compare / Oppo Watch X3 vs Oppo K15x
Oppo Watch X3 vs Oppo K15x
A side-by-side comparison of the Oppo Watch X3 and the Oppo K15x, covering display, chipset, memory, camera, battery and build.
Overview
Specifications
Oppo Watch X3
- Technology
- HSPA / LTE
- 2G bands
- N/A
- 3G bands
- HSDPA 850 / 900 / 2100 - cellular model only
- 4G bands
- 1, 3, 5, 8, 34, 38, 39, 40, 41 - cellular model only
- Speed
- No
Oppo K15x
- Technology
- GSM / HSPA / LTE / 5G
- 2G bands
- GSM 850 / 900 / 1800 / 1900
- 3G bands
- HSDPA 850 / 900 / 2100
- 4G bands
- 1, 3, 5, 8, 28, 34, 38, 39, 40, 41
- 5G bands
- 1, 3, 5, 8, 28, 41, 48, 77, 78 SA/NSA
- Speed
- HSPA, LTE, 5G
Oppo Watch X3
- Announced
- 2026, March 17
- Status
- Available. Released 2026, March 20
Oppo K15x
- Announced
- 2026, October 02
- Status
- Available. Released 2026, October 02
Oppo Watch X3
- Dimensions
- 47.4 x 47.4 x 11 mm (1.87 x 1.87 x 0.43 in)
- Weight
- 43 g (1.52 oz)
- Build
- Sapphire crystal front, titanium alloy frame, glass-fiber reinforced plastic back
- SIM
eSIM (market/region dependent) - cellular model only
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)
Waterproof (5ATM)
MIL-STD-810H compliant
ECG certified
Oppo K15x
- Dimensions
- 166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
- Weight
- 212 g (7.48 oz)
- Build
- Glass front, plastic frame, plastic back
- SIM
Nano-SIM + Nano-SIM
IP64 dust tight and water resistant (water splashes)
Oppo Watch X3
- Type
- LTPO AMOLED, 600 nits (typ), 1500 nits (HBM), 3000 nits (peak)
- Size
- 1.5 inches
- Resolution
- 466 x 466 pixels (~310 ppi density)
- Protection
- Sapphire crystal glass
Oppo K15x
- Type
- IPS LCD, 120Hz, 1125 nits (peak)
- Size
- 6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
- Resolution
- 720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
Oppo Watch X3
- OS
- ColorOS Watch 8.0 + Wear OS 6.0
- Chipset
- Qualcomm Snapdragon W5 Gen 1 (4 nm)
Oppo K15x
- OS
- Android 16, ColorOS 16
- Chipset
- Mediatek Dimensity 6300 (6 nm)
- CPU
- Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
- GPU
- Mali-G57 MC2
Oppo Watch X3
- Card slot
- No
- Internal
- 32GB 2GB RAM
Oppo K15x
- Card slot
- microSDXC
- Internal
128GB 6GB RAM, 256GB 6GB RAM
UFS 2.2
Oppo Watch X3
Not listed for this device
Oppo K15x
- Dual
13 MP, f/2.2, 27mm (wide), AF
Auxiliary lens
- Features
- LED flash, HDR, panorama
- Video
- 1080p@30/60fps
Oppo Watch X3
Not listed for this device
Oppo K15x
- Single
- 5 MP, f/2.2, 27mm (wide)
- Features
- Panorama
- Video
- 1080p@30fps
Oppo Watch X3
- Loudspeaker
- Yes
- 3.5mm jack
- No
Oppo K15x
- Loudspeaker
- Yes
- 3.5mm jack
- Yes
Oppo Watch X3
- WLAN
- Wi-Fi 802.11 a/b/g/n, dual-band
- Bluetooth
- 5.2, A2DP, LE
- Positioning
- GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS
- NFC
- Yes
- Radio
- No
- USB
- No
Oppo K15x
- WLAN
- Wi-Fi 802.11 a/b/g/n/ac, dual-band
- Bluetooth
- 5.4, A2DP, LE, aptX HD
- Positioning
- GPS, GALILEO, GLONASS, QZSS
- NFC
- Yes
- Radio
- No
- USB
- USB Type-C 2.0, OTG
Oppo Watch X3
- Sensors
- Accelerometergyrobarometercompassheart rateSpO2thermometer (skin temperature)
Oppo K15x
- Sensors
- Fingerprint (side-mounted), accelerometer, proximity, compass
Oppo Watch X3
- Type
- Si/C Li-Ion 646 mAh
- Charging
- 10W wired, 100% in 75 min
Oppo K15x
- Type
- 6500 mAh
- Charging
45W wired
5W reverse wired
Oppo Watch X3
- Colors
- Black, Titanium
- Models
- OWW261
- Price
- About 330 EUR
Oppo K15x
- Colors
- Purple, White
- Models
- PLT150
- Price
- About 230 EUR
Oppo Watch X3
- No
Oppo K15x
Not listed for this device
How the Oppo Watch X3 and Oppo K15x differ
- The Oppo K15x has a larger battery, 6500 mAh against 646 mAh on the Oppo Watch X3.
- The Oppo K15x has the bigger screen, 6.75 inches against 1.5 inches.
- The Oppo K15x offers more RAM, up to 6 GB against 2 GB.
- The Oppo K15x is the newer of the two, released in October 2026.