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Oppo Oppo F21 Pro 5G vs Samsung Galaxy Z Flip 8

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 / 2100   HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100  
4G Network LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)   LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 14(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 29(700), 30(2300), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500), 46(5200), 66(1700/2100), 71(600)  
5G Network SA/NSA   SA/NSA/Sub6  
Dimensions 159.9 x 73.2 x 7.5 mm   N/A  
Sim Type Dual Sim, Dual Standby (Nano-SIM)   Nano-SIM + multiple eSIM (max 2 at a time)  
Weight 173 g   N/A  
Display Type 430 nits (typ), 600 nits (HBM)   Foldable Dynamic LTPO AMOLED 2X Capacitive Touchscreen   120Hz, HDR10+, 2600 nits (peak), Cover display: 4.1 inches, 948 x 1048 pixels (Gorilla Glass Victus 2) Super AMOLED, 120Hz, 2600 nits (peak)  
Display Size 1080 x 2400 Pixels (~409 PPI)   7.0 Inches   1080 x 2520 Pixels (~392 PPI)  
Protection Schott Xensation glass  
Memory 128GB Built-in, 8GB RAM, UFS 2.2   256/512GB Built-in, 12GB RAM, UFS 4.0  
Card slot microSDXC   No  
GPRS Yes
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot   Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct  
BlueTooth v5.1 with A2DP, LE, apt-X HD   v6.0 with A2DP, LE  
USB USB Type-C 2.0, USB On-The-Go   USB Type-C 3.2, OTG  
NFC No   Yes  
GPS Yes + A-GPS support, & GLONASS, GALILEO, QZSS   Yes + A-GPS support & Glonass, BDS, GALILEO, QZSS  
Main Camera Phase detection, Geo-tagging, touch focus, face detection, HDR, panorama, Video ([email protected], gyro-EIS)   Dual Camera: 50 MP, f/1.8, 23mm (wide), 1/1.57", dual pixel PDAF, OIS + 12 MP, f/2.2, 13mm, (ultrawide), 1/3.2", LED Flash   HDR, panorama, Video (4K@30/60fps, 1080p@60/120/240fps, 720p@960fps, HDR10+)  
Front Camera 16 MP, f/2.4, 27mm (wide), HDR, panorama, Video ([email protected])   12 MP  
OS Android 12 OS   Android 17 OS  
Chipset Qualcomm SM6375 Snapdragon 695 5G (6 nm)   Exynos 2500 (3 nm)  
Processor Octa-core (2 x 2.2 GHz Kryo 660 Gold + 6 x 1.7 GHz Kryo 660 Silver)   3.3 Ghz Octa Core  
GPU Adreno 619   Xclipse 950  
Sensors Accelerometer, Compass, Fingerprint (under display, optical), Gyro, Proximity   Accelerometer, Barometer, Compass, Fingerprint (side mounted), Gyro, Proximity, Circle to Search  
Browser HTML5   HTML5  
Sound 3.5mm Audio Jack, MP4/H.264/FLAC player, MP3/eAAC+/WAV player, Speaker Phone   32-bit/384kHz audio, Speaker  Phone  
Colors Rainbow Spectrum, Cosmic Black   Various  
Battery - Fast charging 33W, 31% in 15 min, 100% in 63 min (advertised), Reverse charging, USB Power Delivery   4700 mAh   - Fast charging 25W  
Misc RGB ring lights around the cameras (notifications, charging progress), IPX4, dust and water resistant, Document editor, Photo/video editor   SMS(threaded view), MMS, Email, Push Mail, IM   IP48 dust and water resistant (dust > 1mm; immersible up to 1.5m for 30 min), Armor aluminum frame, Plastic front (unfolded), glass back + Gorilla Glass Victus 2), Aluminum frame