SO-02K is Japan verison , if you choose SO-02K ,some times ,we will send the phone with the japan version logo on the back cover .
G8441 is Global version , supports NFC.
Japan (Version) doesn't support NFC.
NETWORK Technology
GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 19, 20, 25, 26, 28, 29, 32, 38, 39, 40, 41, 66
Speed HSPA 42.2/5.76 Mbps, LTE-A (4CA) Cat15 800/75 Mbps
LAUNCH Announced 2017, August
Status Available. Released 2017, October
BODY Dimensions 129 x 65 x 9.3 mm (5.08 x 2.56 x 0.37 in)
Weight 140 g (4.94 oz)
Build Glass front (Gorilla Glass 4), plastic back, plastic frame
SIM Nano-SIM
IP68 dust/water resistant (up to 1.5m for 30 mins)
DISPLAY Type IPS LCD
Size 4.6 inches, 58.3 cm2 (~69.6% screen-to-body ratio)
Resolution 720 x 1280 pixels, 16:9 ratio (~319 ppi density)
Protection Corning Gorilla Glass 5
Triluminos display
X-Reality Engine
PLATFORM OS Android 8.0 (Oreo), upgradable to Android 9.0 (Pie)
Chipset Qualcomm MSM8998 Snapdragon 835 (10 nm)
CPU Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)
GPU Adreno 540
MEMORY Card slot microSDXC (dedicated slot)
Internal 32GB 4GB RAM
UFS 2.0
MAIN CAMERA Single 19 MP, f/2.0, 25mm (wide), 1/2.3", 1.22µm, predictive PDAF, Laser AF
Features LED flash, panorama, HDR
Video 4K@30fps, 1080p@60fps, 1080p@30fps (gyro-EIS), 720p@960fps
SELFIE CAMERA Single 8 MP, f/2.4, 18mm, 1/4"
Video 1080p@30fps (gyro-EIS)
SOUND Loudspeaker Yes, with stereo speakers
3.5mm jack Yes
24-bit/192kHz audio
COMMS WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot
Bluetooth 5.0, A2DP, aptX HD, LE
GPS Yes, with A-GPS, GLONASS, BDS, GALILEO
NFC Yes
Radio No
USB USB Type-C 2.0, USB On-The-Go
FEATURES Sensors Fingerprint (side-mounted), accelerometer, gyro, proximity, barometer, compass, color spectrum
BATTERY Type Li-Ion 2700 mAh, non-removable
Charging Fast charging 18W
Quick Charge 3.0