Samsung Galaxy J7 Perx vs Samsung Galaxy S21+ Specs Comparison

Design

Dimensions
5.9 x 3 x 0.3 inches 149.9 x 76.2 x 7.6 mm	6.35 x 2.98 x 0.31 inches 161.5 x 75.6 x 7.8 mm
Weight
5.90 oz (167.3 g)	7.13 oz (202.0 g)
Materials
	Back: Glass (Corning Gorilla Glass Victus) Frame: Aluminum
Resistance
	Water, Dust; IP68
Biometrics
	2D Face unlock, Ultrasonic in-screen fingerprint
Features
Touch sensitive control keys
Keys
Left: Volume control; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black	Phantom silver, Black, Violet

Display

Size
5.5-inch	6.7-inch
Resolution
1280x720px, 267 PPI	2400x1080px, 20:9 ratio, 393 PPI
Technology
TFT	Dynamic AMOLED
Refresh rate
	120Hz (adaptive)
Screen-to-body
73.03 %	88.63 %
Colors
16 777 216
Peak brightness
	1300 cd/m2 (nit)
Features
Proximity sensor	HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 625 8953 (14 nm)	Qualcomm Snapdragon 888 (5 nm)
Processor
Octa-core 2200 MHz ARM Cortex-A53	Octa-core 1x2.84GHz Kryo 680 3x2.42GHz Kryo 680 4x1.80GHz Kryo 680
GPU
Adreno 506	Adreno 660
RAM
2GB (LPDDR3)	8GB (LPDDR5)
Internal storage
16GB	128GB (UFS 3.0)
Storage expansion
microSDXC up to 128 GB	not expandable
OS
Android (7.0 Nougat)	Android (13, 12, 11), Samsung One UI

Battery

Capacity
3300 mAh	4800 mAh
Type
Li - Ion	Li - Polymer
Charging
	Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging
Charge speed
	Wired: 25.0W Wireless: 15.0W

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

5h 26min

Browsing

10h 50min

Video

8h 27min

Gaming

8h 36min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Single camera	Triple camera
Main camera
8 MP (Autofocus, CMOS image sensor)	12 MP (OIS, PDAF) Aperture size: F1.8 Focal length: 26 mm Sensor size: 1/1.76" Pixel size: 1.8 μm
Second camera
	12 MP (Ultra-wide, PDAF) Aperture size: F1.8 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm
Third camera
	64 MP (Telephoto, OIS, PDAF) Aperture size: F2.0 Focal Length: 29 mm Sensor size: 1/2.55" Pixel size: 0.8 μm
Flash
LED	LED
Video recording
1920x1080 (Full HD) (30 fps) Video calling, Video sharing	7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps) OIS, HDR, Hyperlapse, Video light, EIS
Front
5 MP, Video capture: 1920x1080 (Full HD)	10 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps)

Connectivity & Features

Bluetooth
4.2	5.0
WLAN
802.11 a,b,g,n,ac,dual-band Hotspot, Wi-Fi Direct	802.11 a,b,g,n,ac,ax(Wi-Fi 6),dual-band MIMO, Wi-Fi Direct, Hotspot
USB
microUSB, USB 2.0	Type-C, USB 3.2
Hearing aid compatible
	M3/T3
Location
GPS, A-GPS, Glonass	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Other
ANT+, VoIP, Tethering, Computer sync, OTA sync	NFC, ANT+

Multimedia

Headphones
3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Multiple speakers
Features
Album art cover, Background playback	32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM	FM
Additional microphone(s)
	Noise cancellation, Video recording

Cellular

5G
	Bands n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave
4G (FDD)
Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 25(1900+), 26(850+)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 41(2600+)	Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
3G
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE, HSPA, UMTS	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
SIM type
	Nano SIM
HD Voice
Yes

Phone Features

Notifications
Haptic feedback
Other features
Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval
Date approved: Aug 01, 2017 FCC ID value: A3LSMJ727P	Date approved: Dec 18, 2020 FCC ID value: A3LSMG996U
Measured SAR
Head: 0.65 W/kg Body: 0.17 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 0.59 W/kg Phablet: 3.99 W/kg	Head: 0.65 W/kg Body: 0.95 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.04 W/kg Phablet: 3.97 W/kg

Buyers information

MSRP
	$ 1000
In The Box
	C to C Data Cable, Ejection Pin

Availability

Officially announced
Apr 10, 2017	Jan 14, 2021

Alternative variants

with 256GB storage

Internal storage	256GB
MSRP	$ 1050

for Europe

System chip	Samsung Exynos 2100 (5 nm)
Processor	Octa-core 1x 2.91GHz Cortex-X1 + 3x 2.81GHz Cortex-A78 + 4x 2.2GHz Cortex-A55
GPU	Mali G78 MP14
Weight	7.05 oz (200.0 g)
5G	Bands SA, NSA, Sub-6
FCC approval	Date approved: Dec 18, 2020 FCC ID value: A3LSMG996B
Measured SAR	Head: 0.24 W/kg Body: 0.75 W/kg Simultaneous Transmission: 3.59 W/kg Wireless Router: 1.26 W/kg Phablet: 1.95 W/kg

Links

Full specifications
Samsung Galaxy J7 Perx Specs	Samsung Galaxy S21+ Specs
PhoneArena Review
	Samsung Galaxy S21+ Review
User Reviews
	Samsung Galaxy S21+ User Reviews