Samsung Galaxy Quantum 2 vs Samsung Galaxy S21 5G

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PHONES
Phone Names Samsung Galaxy Quantum 2 Samsung Galaxy S21 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 661, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G991U1
5G bands78 Sub62, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G991U1
SpeedHSPA, LTE, 5GHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
TechnologyGSM / HSPA / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
 -1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G991B
Launch
Announced2021, April 132021, January 14
StatusAvailable. Released 2021, April 23Available. Released 2021, January 29
Body
Build-Glass front (Gorilla Glass Victus), plastic back, aluminum frame
Dimensions161.9 x 73.8 x 8.1 mm (6.37 x 2.91 x 0.32 in)151.7 x 71.2 x 7.9 mm (5.97 x 2.80 x 0.31 in)
SIMNano-SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
Weight176 g (6.21 oz)169 g (Sub6), 171 g (mmWave) (5.96 oz)
 -IP68 dust/water resistant (up to 1.5m for 30 min)
Display
Protection-Corning Gorilla Glass Victus
Resolution1440 x 3200 pixels, 20:9 ratio (~524 ppi density)1080 x 2400 pixels, 20:9 ratio (~421 ppi density)
Size6.7 inches, 108.4 cm2 (~90.7% screen-to-body ratio)6.2 inches, 94.1 cm2 (~87.2% screen-to-body ratio)
TypeDynamic AMOLED 2X, 120Hz, 1200 nits (peak)Dynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak)
 120Hz@FHD / 60Hz@QHD refresh rateAlways-on display
Platform
CPUOcta-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - InternationalOcta-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China
ChipsetQualcomm SM8150 Snapdragon 855+ (7 nm), QRNG security chipsetExynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
GPUAdreno 640 (700 MHz)Mali-G78 MP14 - InternationalAdreno 660 - USA/China
OSAndroid 11, One UI 3.1Android 11, up to 4 major Android upgrades, One UI 6.1
Memory
Card slotmicroSDXC (dedicated slot)No
Internal128GB 6GB RAM128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
 -UFS 3.1
Main Camera
FeaturesLED flash, panorama, HDRLED flash, auto-HDR, panorama
Triple64 MP, f/1.8, 26mm (wide), 1/1.7X", 0.8µm, PDAF, OIS 12 MP, f/2.2, 123˚ (ultrawide), 1.12µm 5 MP (macro)12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video
Video4K@30fps, 1080p@30/60/240fps; gyro-EIS8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS
Selfie camera
FeaturesHDRHDR
Single10 MP, f/2.2, (wide)10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF
Video1080p@30fps4K@30/60fps, 1080p@30fps
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 -32-bit/384kHz audio Tuned by AKG
Comms
Bluetooth5.0, A2DP, LE5.0, A2DP, LE
NFCYesYes
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, BDS, GALILEO
RadioNoFM radio (Snapdragon model only; market/operator dependent)
USBUSB Type-C 2.0, OTGUSB Type-C 3.2, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compassFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
 -Samsung DeX, Samsung Wireless DeX (desktop experience support) Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified)
Battery
Charging25W wired25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
TypeLi-Po 4500 mAhLi-Ion 4000 mAh
Misc
ColorsBlack, White, VioletPhantom Gray, Phantom White, Phantom Violet, Phantom Pink
ModelsSM-A826SSM-G991B, SM-G991B/DS, SM-G991U, SM-G991U1, SM-G991W, SM-G991N, SM-G9910, SM-G991Q, SCG09
PriceAbout 520 EUR€ 194.00 / $ 153.58 / £ 149.99
SAR-0.74 W/kg (head)     1.08 W/kg (body)
SAR EU-0.46 W/kg (head)     1.51 W/kg (body)
Pricing
128GB 8GB RAM-$ 249.00
256GB 8GB RAM-$ 289.99
RENEWED-$ 317.00
Tests
Battery life- Endurance rating 93h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -26.4 LUFS (Good)
Performance- AnTuTu: 584055 (v8) GeekBench: 3238 (v5.1) GFXBench: 60fps (ES 3.1 onscreen)
OUR TESTS
Battery (old)-Endurance rating 93h
Camera-Photo / Video
Display-856 nits max brightness (measured)
Loudspeaker--26.4 LUFS (Good)
Performance-AnTuTu: 584055 (v8) GeekBench: 3238 (v5.1) GFXBench: 60fps (ES 3.1 onscreen)