OnePlus 3T (128GB) vs Samsung Galaxy A15 (SM-A155M/DSN 128GB/6GB)

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Side by side comparison between OnePlus 3T vs Samsung Galaxy A15 phones, differences, pros, cons and full specifications. What's the better?

3/18/2024 5:07 PM, updated: 3/18/2024 7:37 PM

Compare Samsung Galaxy A15 X OnePlus 3T (128GB) 10Points

Specifications Compare Models Pictures

5.5"
AMOLED

1080x1920

16
MP

16mp

6GB
RAM

Quad-core

3400
mAh

(Non removable)

11Points Samsung Galaxy A15 (SM-A155M/DSN 128GB/6GB) Compare OnePlus 3T X

Specifications Compare Models Pictures

6.5"
AMOLED

1080x2340

50
MP

13mp

6GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A15 (SM-A155M/DSN 128GB/6GB)

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!

10 Advantages OnePlus 3T (128GB)	vs	11 Advantages Samsung Galaxy A15 (SM-A155M/DSN 128GB/6GB)
+158 grams (5.53 ounces)27% Lighter	vs	200 grams (7 ounces)
+7.35 millimeters (0.29 inches)14% Thinner	vs	8.4 millimeters (0.33 inches)
+401 PPI1% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	396 PPI
+OIS: Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+(front) 16MP25% Higher resolution secondary camera to take pictures and selfies	vs	(front) 13MP
+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera	vs	Full HD (1920x1080)
+GyroscopeAdvantage Sensors help you use the device	vs	Not supported
+Proximity sensorAdvantage Sensors help you use the device	vs	Virtual proximity sensor
+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.	vs	Not supported
+Gorilla Glass 4Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
2.35GHz 64bit Quad-core	vs	+2.2GHz 64bit Octa-core (6nm)38% More powerful processor, you can open your applications faster
Not supported	vs	+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards
1080x1920 pixels	vs	+1080x2340 pixels22% Higher resolution screen
5.5"	vs	+6.5"18% Larger screen
(back) 16MP	vs	+(triple camera) 50MP + 5MP + 2MP3 times Higher resolution main camera
f/2.0 (aperture)	vs	+f/1.8 (aperture)11% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
Android 6.0.1 Marshmallow	vs	+Android 14Advantage Android 14 is newer and safer
Not supported	vs	+Face unlockAdvantage Sensors help you use the device
3400 mAh	vs	+5000 mAh47% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Not supported	vs	+FM (RDS)Advantage The radio lets you listen to your songs and sports in general
4.2 + A2DP	vs	+5.3 + A2DP/LEAdvantage Bluetooth 5.3 + A2DP/LE is newer and faster

25 Common items in both devices

6GB LPDDR4 / 6GB LPDDR4X

128GB (114GB available) / 128GB (108GB available)

Optic AMOLED / Super AMOLED

16 million

LED flash

Only digital zoom

PDAF: phase detection autofocus / Autofocus

+18 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
	OnePlus 3T (128GB)	Galaxy A15 (SM-A155M/DSN 128GB/6GB)
Change model		Choose the model
Model	OnePlus 3T (128GB)	Galaxy A15 (SM-A155M/DSN 128GB/6GB)
Other model names	OnePlus Three, OnePlus 3T Dual-Sim	Galaxy A15 4G LTE SM-A155M/Dual-SIM NFC
Country or region available	(Global, International), Canada, China, USA, (Europe), Hong Kong	(Latin America), Colombia, Costa Rica
Brand	OnePlus	Samsung
Release date	11/22/2016	12/16/2023, Announced: 12/11/2023
Depth	7.35 millimeters (0.29 inches)	8.4 millimeters (0.33 inches)
Size (width x height)	74.7 x 152.7 millimeters (2.94 x 6.01 in)	76.8 x 160.1 millimeters (3.02 x 6.3 in)
Weight	158 grams (5.53 ounces)	200 grams (7 ounces)
Build, materials	feature not registered	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	OnePlus 3T (128GB)	Galaxy A15 (SM-A155M/DSN 128GB/6GB)
Display type	Optic AMOLED	Super AMOLED
Screen size	5.5" inches	6.5" inches
Screen-to-body ratio	~73.1% (screen-to-body ratio)	~84.3% (screen-to-body ratio)
Display resolution	1080x1920 pixels	1080x2340 pixels (19.5:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	401 PPI	396 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 4	Not supported
Refresh rate	feature not registered	90Hz
Display features	feature not registered	800nits[peak]
🤖 Operating System
	OnePlus 3T (128GB)	Galaxy A15 (SM-A155M/DSN 128GB/6GB)
System version	Android 6.0.1 Marshmallow	Android 14
Firmware update	feature not registered	feature not registered
User Interface	feature not registered	One UI 6.1
⚙️ Processor
	OnePlus 3T (128GB)	Galaxy A15 (SM-A155M/DSN 128GB/6GB)
Chipset	64bit: Qualcomm Snapdragon 821 MSM8996 (14nm)	64bit: MediaTek Helio G99 (6nm)
CPU	Quad-core, 2 processors: 2x 2.35GHz Kryo (Dual-core) 2x 1.6GHz Kryo (Dual-core)	Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A76 (Dual-core) 6x 2GHz ARM Cortex-A55 (Hexa-core)
GPU graphical controller	Qualcomm Adreno 530	ARM Mali-G57 MC2
Performance (benchmark)	feature not registered	AnTuTu: 317085 (v9), 375321 (v10) Geekbench: 1928 (v5), 1936 (v6)
💽 Memory and storage
	OnePlus 3T (128GB)	Galaxy A15 (SM-A155M/DSN 128GB/6GB)
RAM memory	6GB LPDDR4	6GB LPDDR4X
Internal storage	128GB (114GB available)	128GB (108GB available) eMMC 5.1
External storage	Not supported	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	OnePlus 3T (128GB)	Galaxy A15 (SM-A155M/DSN 128GB/6GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	300/50 Mbps	300/150 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	North America model: CDMA2000 EV-DO UMTS 850/900/1700/1900/2100 Europe/Asia model: UMTS 850/900/1900/2100 China model: CDMA2000 EV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat6 North America model: LTE (Bands 1,2,4,5,7,8,12,17,30) Europe/Asia model: LTE (Bands 1,3,5,7,8,20) TD-LTE (Bands 38,40) China model: LTE (Bands 1,3,5,7,8) TD-LTE (Bands 38,39,40,41)	LTE Cat7 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
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 Cat7 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
📷 Camera
	OnePlus 3T (128GB)	Galaxy A15 (SM-A155M/DSN 128GB/6GB)
Back camera (main camera)	16 megapixels	(triple camera) 50 megapixels 5MP ultrawide f/2.2 2MP macro f/2.4
Main camera resolution	4608x3456 pixels	8160x6120 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	Full HD (1920x1080) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/2.0 (aperture)	f/1.8 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	1/2.8" inches	feature not registered
Pixel size	1.12µm pixel	feature not registered
Autofocus	PDAF: phase detection autofocus	Autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Supported
HDR	HDR photo/video on both cameras	HDR photo on both cameras
Camera extras	feature not registered	1080p@30fps 720p@120fps (slow motion)
📸 Front camera
	OnePlus 3T (128GB)	Galaxy A15 (SM-A155M/DSN 128GB/6GB)
Front camera (secondary)	16 megapixels	13 megapixels
Front camera resolution	4608x3456 pixels	4128x3096 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	1µm pixel	feature not registered
🔉 Sound and multimedia
	OnePlus 3T (128GB)	Galaxy A15 (SM-A155M/DSN 128GB/6GB)
Loudspeaker	Supported	Mono sound (not stereo)
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	Not supported	FM (RDS)
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, DivX, XviD, MKV, WMV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	OnePlus 3T (128GB)	Galaxy A15 (SM-A155M/DSN 128GB/6GB)
USB	USB 2.0 Type-C reversible connector	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	4.2 + A2DP	5.3 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	OnePlus 3T (128GB)	Galaxy A15 (SM-A155M/DSN 128GB/6GB)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor Gesture Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	OnePlus 3T (128GB)	Galaxy A15 (SM-A155M/DSN 128GB/6GB)
Battery type	LiPo: li-ion polymer (Non removable) 5V 4A	LiPo: li-ion polymer (Non removable)
Battery capacity	3400 mAh	5000 mAh
Charger, watts	Wired charging	25W Wired fast charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	feature not registered	51 hours (2.1 days)
Standby	feature not registered	feature not registered
➕ Other features
	OnePlus 3T (128GB)	Galaxy A15 (SM-A155M/DSN 128GB/6GB)
Call control	Voice dialing, Voice recorder, Voice commands	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: Gunmetal • USB OTG On-The-Go • Aluminum body • OxygenOS 3.5 • LED notification (RGB) • Rear camera: Sony IMX298 sensor • Front camera: Samsung 3P8SP sensor • Slow motion 720p@120fps • Dash charge • Fast battery charging: 60% in 30min • Dirac HD Sound • Miracast • WiFi dual-band	• Colors: Brave Black, Optimistic Blue, Magical Blue, Personality Yellow
☢️ Radiation rate
	OnePlus 3T (128GB)	Galaxy A15 (SM-A155M/DSN 128GB/6GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered