Asus Zenfone 3s Max vs Samsung Galaxy S21

Network
TechnologyGSM / HSPA / LTE
2G bandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bandsHSDPA 850 / 900 / 1900 / 2100 - Global
HSDPA 850 / 900 / 2100 - India
4G bandsLTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 18(800), 19(800), 26(850), 28(700), 38(2600), 41(2500) - Taiwan
LTE band 1(2100), 3(1800), 5(850), 8(900), 40(2300) - India
SpeedHSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
GPRSYes
EDGEYes
Launch
Announced2017, January
StatusAvailable. Released 2017, February
Body
Dimensions8.9 mm thickness
Weight175 g (5.22 oz)
SIMHybrid Dual SIM (Micro-SIM/Nano-SIM, dual stand-by)
Display for Asus Zenfone 3s Max
TypeIPS LCD capacitive touchscreen, 16M colors
Size5.2 inches, 74.5 cm2
Resolution720 x 1280 pixels, 16:9 ratio (~282 ppi density)
Platform
OSAndroid 7 (Nougat); ZenUI 3
ChipsetMediatek MT6750 (28 nm)
CPUOcta-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
GPUMali-T860MP2
Memory
Card slotmicroSD, up to 256 GB (uses SIM 2 slot)
Internal32 GB, 3 GB RAM
Main Camera
Single13 MP, AF, f/2.0
FeaturesDual-LED dual-tone flash, panorama, HDR
Video1080p@30fps
Selfie camera
Single8 MP
Video
Sound
LoudspeakerYes
3.5mm jackYes
Active noise cancellation with dedicated mic
Comms
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
Bluetooth4.0, A2DP, EDR
GPSYes, with A-GPS, GLONASS, BDS
RadioFM radio
USBmicroUSB 2.0, USB On-The-Go
Features
SensorsFingerprint (front-mounted), accelerometer, gyro, proximity, compass
Battery
Non-removable Li-Po 5000 mAh battery
ChargingPower Bank/Reverse charging
Stand-byUp to 816 h (3G)
Talk timeUp to 28 h (3G)
space
Network
TechnologyGSM / CDMA / HSPA / EVDO / LTE / 5G
2G bandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only)
CDMA 800 / 1900 & TD-SCDMA
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
CDMA2000 1xEV-DO
4G bandsLTE
5G bandsSA/NSA/Sub6/mmWave
SpeedHSPA 42.2/5.76 Mbps, LTE-A (CA), 5G
Launch
Announced2021, January 14
StatusAvailable
Body
Dimensions151.7 x 71.2 x 7.9 mm (5.97 x 2.80 x 0.31 in)
Weight169 g (Sub6), 171 g (mmWave) (5.96 oz)
BuildGlass front (Gorilla Glass Victus), plastic back, aluminum frame
SIMSingle SIM (Nano-SIM and/or eSIM) or Dual SIM (Nano-SIM and/or eSIM, dual stand-by)
Samsung Pay (Visa, MasterCard certified)
IP68 dust/water resistant (up to 1.5m for 30 mins)
Display for Samsung Galaxy S21
TypeDynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak)
Size6.2 inches, 94.1 cm2 (~87.2% screen-to-body ratio)
Resolution1080 x 2400 pixels, 20:9 ratio (~421 ppi density)
ProtectionCorning Gorilla Glass Victus
Always-on display
Platform
OSAndroid 11, One UI 3.1
ChipsetExynos 2100 (5 nm) - International
Qualcomm SM8350 Snapdragon 888 (5 nm) - USA/China/Korea
CPUOcta-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International
Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680 - USA/China/Korea
GPUMali-G78 MP14 - International
Adreno 660 - USA/China/Korea
Memory
Card slotNo
Internal128GB 8GB RAM, 256GB 8GB RAM
UFS 3.1
Main Camera
Triple12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, Dual Pixel PDAF, OIS
64 MP, f/2.0, 28mm (telephoto), 1/1.76", 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
FeaturesLED flash, auto-HDR, panorama
Video8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS
Selfie camera
Single10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, Dual Pixel PDAF
FeaturesDual video call, Auto-HDR
Video4K@30/60fps, 1080p@30fps
Sound
LoudspeakerYes, with stereo speakers
3.5mm jackNo
32-bit/384kHz audio
Tuned by AKG
Comms
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
Bluetooth5.0, A2DP, LE
GPSYes, with A-GPS, GLONASS, BDS, GALILEO
NFCYes
RadioFM radio (Snapdragon model only; market/operator dependent)
USBUSB Type-C 3.2, USB On-The-Go
Features
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Samsung DeX, Samsung Wireless DeX (desktop experience support)
ANT+
Bixby natural language commands and dictation
Battery
TypeLi-Po 4000 mAh, non-removable
ChargingFast charging 25W
USB Power Delivery 3.0
Fast Qi/PMA wireless charging 15W
Reverse wireless charging 4.5W

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