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Samsung Galaxy S21 Ultra vs Vivo X300 Pro

2G Network SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900   SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100   HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500), 66(1700/2100)   LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
5G Network 5G SA/NSA   5G SA/NSA
Dimensions 165.1 x 75.6 x 8.9 mm   161.2 x 75.5 x 8 mm
Sim Type Dual Sim, Dual Standby, eSIM (Nano-SIM)   Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
Weight 227 g   226 g
Display Type Always-on display, 120Hz, HDR10+, 1500 nits (peak)   LTPO AMOLED Capacitive Touchscreen, 1B Colors   Ultra HDR image support, 120Hz, 2160Hz PWM, HDR10+, HDR Vivid, Dolby Vision, 4500 nits (peak)
Display Size 1440 x 3200 Pixels (~516 PPI)   6.78 Inches   1260 x 2800 Pixels (~453 PPI)
Protection Corning Gorilla Glass Victus   Armor Glass, Mohs level 4
Memory 256GB Built-in, 12GB RAM   512GB Built-in, 16GB RAM, UFS 4.1
Card slot No   No
GPRS Yes
WLAN Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, hotspot   Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band
BlueTooth v5.2 with A2DP, LE   v6.0 with A2DP, LE, apt-X HD
USB USB Type-C 3.2, USB On-The-Go   USB Type-C 3.2, OTG
NFC Yes   Yes
GPS Yes + A-GPS support & Glonass, BDS, GALILEO   Yes + GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a+B2b), GALILEO (E1+E5a+E5b), QZSS (L1+L5), NavIC (L5)
Main Camera Geo-tagging, touch focus, face/smile detection, Auto HDR, panorama, Video ([email protected], [email protected]/60fps, [email protected]/60/240fps, [email protected], HDR10+, stereo sound rec., Gyro-EIS)   Triple Camera: 50 MP, f/1.6, 24mm (wide), 1/1.28", PDAF, OIS + 200 MP, f/2.7, 85mm (periscope telephoto), 1/1.4", multi-directional PDAF, OIS, 3.7x optical zoom, macro + 50 MP, f/2.0, 15mm, (ultrawide), 1/2.76", AF, LED Flash   Laser AF, color spectrum sensor, Zeiss optics, Zeiss T* lens coating, panorama, HDR, 3D LUT import, Video (8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, gyro-EIS, 4K@120fps 10-bit Log, Dolby Vision HDR)
Front Camera 40 MP, f/2.2, 26mm (wide), 1/2.8   50 MP, f/2.0, (wide), 1/2.76", AF, HDR, Video (4K@30/60fps, 1080p@30/60fps)
OS Android 11 OS   Android 16 OS, up to 5 major Android upgrades
Chipset Exynos 2100 (5 nm)   Mediatek Dimensity 9500 (3 nm)
Processor Octa-core (1 x 2.9 GHz Cortex-X1 + 3 x 2.80 GHz Cortex-A78 + 4 x 2.2 GHz Cortex-A55)   Octa-core (1 x 4.21 GHz C1-Ultra + 3 x 3.5 GHz C1-Premium + 4 x 2.7 GHz C1-Pro)
GPU Mali-G78 MP14   Arm G1-Ultra
Sensors Accelerometer, Barometer, Compass, Fingerprint (under display, ultrasonic), Gyro, Proximity   Accelerometer, color spectrum, Compass, Fingerprint (under display, ultrasonic), Gyro, Proximity, Satellite connectivity support (optional, market/region dependent)
Browser HTML5   HTML5
Sound 32-bit/384kHz audio, MP4/DivX/XviD/WMV/H.265 player, MP3/WAV/WMA/eAAC+/FLAC player, Speaker Phone   24-bit/192kHz Hi-Res audio, Speaker  Phone
Colors Phantom Black, Phantom Silver   Black, Brown
Battery - Fast charging 25W, USB Power Delivery 3.0, Fast Qi/PMA wireless charging 15W, Reverse wireless charging 4.5W   Li-ion Si-Ca 6510 mAh   - Fast charging 90W wired, 40W wireless, Reverse wireless, Reverse wired
Misc Glass front + Gorilla Glass Victus), Glass back (Gorilla Glass), Aluminum frame, Active noise cancellation with dedicated mic, Samsung Pay (Visa, MasterCard certified), IP68 dust/water resistant (up to 1.5m for 30 mins), Stylus support, Samsung DeX, Samsung Wireless DeX (desktop experience support), ANT+, Bixby natural language commands and dictation, Document viewer, Photo/video editor   SMS(threaded view), MMS, Email, Push Mail, IM   Glass front + Armor Glass), Aluminum alloy frame, glass back, IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)