Samsung Galaxy J1 Duos (SM-J100M/DS) vs Samsung Galaxy A31 (SM-A315G/DS 128GB/4GB)

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Side by side comparison between Samsung Galaxy J1 vs Samsung Galaxy A31 phones, differences, pros, cons and full specifications. What's the better?

5/12/2020 9:53 AM, updated: 12/15/2021 7:49 PM

Compare Samsung Galaxy A31 X Samsung Galaxy J1 Duos (SM-J100M/DS) 03Points

Specifications Compare Models Pictures

4.3"
TFT

480x800

5
MP

2mp

768MB
RAM

Quad-core

1850
mAh

(Removable)

26Points Samsung Galaxy A31 (SM-A315G/DS 128GB/4GB) Compare Samsung Galaxy J1 X

Specifications Compare Models Pictures

6.4"
AMOLED

1080x2400

48
MP

20mp

4GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A31 (SM-A315G/DS 128GB/4GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

3 Advantages Samsung Galaxy J1 Duos (SM-J100M/DS)	vs	26 Advantages Samsung Galaxy A31 (SM-A315G/DS 128GB/4GB)
+122 grams (4.27 ounces)52% Lighter	vs	185 grams (6.48 ounces)
+Proximity sensorAdvantage Sensors help you use the device	vs	Virtual proximity sensor
+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily	vs	LiPo: li-ion polymer (Non removable)
1.2GHz 64bit Quad-core	vs	+2GHz 64bit Octa-core (12nm)109% More powerful processor, you can open your applications faster
768MB LPDDR3	vs	+4GB LPDDR4X4 times More RAM memory. Typically more responsive and better for multitasking.
4GB (2GB available)	vs	+128GB (104GB available)51 times More internal storage for applications and files
eMMC	vs	+eMMC 5.1Advantage Fastest write and read storage.
Until 128GB microSD, microSDXC	vs	+Until 1TB microSD, microSDXC7 times More external storage for files using memory cards
8.9 millimeters (0.35 inches)	vs	+8.6 millimeters (0.34 inches)3% Thinner
TFT LCD	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
480x800 pixels	vs	+1080x2400 pixels6 times Higher resolution screen
217 PPI	vs	+411 PPI89% Crisper display of text, images and videos because it has more pixels per inch (ppi)
4.3"	vs	+6.4"49% Larger screen
(back) 5MP	vs	+(quad camera) 48MP + 8MP + 5MP + 5MP12 times Higher resolution main camera
HDR photo only main camera	vs	+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas
(front) 2MP	vs	+(front) 20MP9 times Higher resolution secondary camera to take pictures and selfies
HD (1280x720)	vs	+Full HD (1920x1080)125% More image quality for recording videos with the primary camera
(front) VGA (640x480)	vs	+(front) Full HD (1920x1080)6 times More image quality for recording videos with the secondary camera
Android 4.4.4 KitKat	vs	+Android 11Advantage Android 11 is newer and safer
Not supported	vs	+CompassAdvantage Sensors help you use the device
Not supported	vs	+Face unlock 2DAdvantage Sensors help you use the device
Not supported	vs	+Fingerprint sensor (under display)Advantage Sensors help you use the device
Not supported	vs	+GyroscopeAdvantage Sensors help you use the device
1850 mAh	vs	+5000 mAh170% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Not supported	vs	+Active noise cancellationAdvantage More noise-canceling microphones allow for better quality in calls and audio for recorded videos
802.11 b/g/n [wifi4]	vs	+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
4.0 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely
MicroUSB 2.0	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.

22 Common items in both devices

Plastic body, glass front

60Hz

16 million

LED flash

Only digital zoom

Autofocus / PDAF: phase detection autofocus

EIS: Digital stabilization

+15 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	Galaxy J1 Duos (SM-J100M/DS)	Galaxy A31 (SM-A315G/DS 128GB/4GB)
Change model		Choose the model
Model	Galaxy J1 Duos (SM-J100M/DS)	Galaxy A31 (SM-A315G/DS 128GB/4GB)
Other model names	Galaxy J1 (4G LTE) SM-J100M/Dual-Sim	Galaxy A31 SM-A315G/Dual-Sim NFC (128GB + 4GB RAM)
Country or region available	Brazil	Australia, New Zealand, Singapore
Brand	Samsung	Samsung
Release date	2/1/2015	4/27/2020, Announced: 3/24/2020
Depth	8.9 millimeters (0.35 inches)	8.6 millimeters (0.34 inches)
Size (width x height)	68.2 x 129 millimeters (2.69 x 5.08 in)	73.1 x 159.3 millimeters (2.88 x 6.27 in)
Weight	122 grams (4.27 ounces)	185 grams (6.48 ounces)
Build, materials	Plastic body, glass front	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy J1 Duos (SM-J100M/DS)	Galaxy A31 (SM-A315G/DS 128GB/4GB)
Display type	TFT LCD	Super AMOLED
Screen size	4.3" inches	6.4" inches
Screen-to-body ratio	~59.8% (screen-to-body ratio)	~84.9% (screen-to-body ratio)
Display resolution	480x800 pixels	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	217 PPI	411 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Not supported
Refresh rate	60Hz	60Hz
Display features	Not supported	Not supported
🤖 Operating System
	Galaxy J1 Duos (SM-J100M/DS)	Galaxy A31 (SM-A315G/DS 128GB/4GB)
System version	Android 4.4.4 KitKat	Android 10
Firmware update	feature not registered	Android 11
User Interface	feature not registered	One UI 2.5 / 3.1
⚙️ Processor
	Galaxy J1 Duos (SM-J100M/DS)	Galaxy A31 (SM-A315G/DS 128GB/4GB)
Chipset	64bit: Marvell Armada PXA1908 (28nm)	64bit: MediaTek Helio P65 (MT6768) (12nm)
CPU	Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A53 (Quad-core)	Octa-core, 2 processors: 2x 2GHz ARM Cortex-A75 (Dual-core) 6x 1.7GHz ARM Cortex-A55 (Hexa-core)
GPU graphical controller	Vivante GC7000UL	ARM Mali-G52 MC2 (820MHz)
Performance (benchmark)	feature not registered	AnTuTu: 151815 (v8) Geekbench: 5096 (v4.4), 1216 (v5.1) GFXBench: 7fps (ES 3.1 onscreen)
💽 Memory and storage
	Galaxy J1 Duos (SM-J100M/DS)	Galaxy A31 (SM-A315G/DS 128GB/4GB)
RAM memory	768MB LPDDR3	4GB LPDDR4X
Internal storage	4GB (2GB available) eMMC	128GB (104GB available) eMMC 5.1
External storage	Until 128GB microSD, microSDXC (dedicated slot)	Until 1TB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Galaxy J1 Duos (SM-J100M/DS)	Galaxy A31 (SM-A315G/DS 128GB/4GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	Dual-SIM Standby - Call active on one sim card (dedicated slot)
SIM card	2 slots (Dual-SIM) micro-SIM (3FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	150/50 Mbps	150/50 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1700/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat4 700/850/1700/1900/2100/2600 (Bands 1,2,4,5,7,17)	LTE Cat4 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 66) TD-LTE (38, 40, 41) VoLTE
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Not supported	UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat4 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 66) TD-LTE (38, 40, 41) VoLTE
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE
📷 Camera
	Galaxy J1 Duos (SM-J100M/DS)	Galaxy A31 (SM-A315G/DS 128GB/4GB)
Back camera (main camera)	5 megapixels	(quad camera) 48 megapixels 8MP ultrawide f/2.2123°1/4"1.12µm 5MP macro f/2.4 5MP depth f/2.4
Main camera resolution	2592x1944 pixels	8000x6000 pixels
Video recording (primary)	HD (1280x720) 30 fps	Full HD (1920x1080) 30 fps
Flash	LED flash	LED flash
Focal aperture	feature not registered	f/2.0 (aperture)
Focal length	feature not registered	26mm (lens)
Sensor size	feature not registered	1/2" inches
Pixel size	feature not registered	0.8µm pixel
Autofocus	Autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo only main camera	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Galaxy J1 Duos (SM-J100M/DS)	Galaxy A31 (SM-A315G/DS 128GB/4GB)
Front camera (secondary)	2 megapixels	20 megapixels
Front camera resolution	1600x1200 pixels	5184x3840 pixels
Video recording (secondary)	VGA (640x480)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	feature not registered	f/2.2 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
🔉 Sound and multimedia
	Galaxy J1 Duos (SM-J100M/DS)	Galaxy A31 (SM-A315G/DS 128GB/4GB)
Loudspeaker	Supported	Mono sound (not stereo)
Active noise cancellation	Not supported	2 microphones or more
Radio	FM (RDS)	FM
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Galaxy J1 Duos (SM-J100M/DS)	Galaxy A31 (SM-A315G/DS 128GB/4GB)
USB	MicroUSB 2.0	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	USB Type-C (reversible)
Bluetooth	4.0 + A2DP	5.0 + A2DP/LE
WiFi	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Not supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy J1 Duos (SM-J100M/DS)	Galaxy A31 (SM-A315G/DS 128GB/4GB)
Sensors	Accelerometer Ambient light sensor Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy J1 Duos (SM-J100M/DS)	Galaxy A31 (SM-A315G/DS 128GB/4GB)
Battery type	Li-Ion: lithium-ion (Removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	1850 mAh	5000 mAh
Charger, watts	Wired charging	15W Wired fast charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	10 hours	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy J1 Duos (SM-J100M/DS)	Galaxy A31 (SM-A315G/DS 128GB/4GB)
Call control	Voice recorder	Voice dialing, Voice recorder, Voice commands
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: White, Black, Blue • Samsung TouchWiz UI	• Colors: Prism Black, Prism Blue, Prism Red, Prism White
☢️ Radiation rate
	Galaxy J1 Duos (SM-J100M/DS)	Galaxy A31 (SM-A315G/DS 128GB/4GB)
SAR 1.6W/kg (USA, Mexico, etc.)	1.23W/kg (head), 1.28W/kg (body)	feature not registered
SAR 2W/kg (Europe, UK, etc.)	0.539W/kg (head), 0.334W/kg (body)	0.488W/kg (head), 1.68W/kg (body)