Xiaomi Redmi K20 (128GB) vs Samsung Galaxy A15 (SM-A155F/DSN 128GB/6GB)

Share page: Facebook Twitter WhatsApp Share page:

Side by side comparison between Xiaomi Redmi K20 vs Samsung Galaxy A15 phones, differences, pros, cons and full specifications. What's the better?

3/18/2024 7:26 PM, updated: 3/18/2024 7:37 PM

Compare Samsung Galaxy A15 X Xiaomi Redmi K20 (128GB) 14Points

Specifications Compare Models Pictures

6.39"
AMOLED

1080x2340

48
MP

20mp

6GB
RAM

Octa-core

4000
mAh

(Non removable)

10Points Samsung Galaxy A15 (SM-A155F/DSN 128GB/6GB) Compare Xiaomi Redmi K20 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? Xiaomi Redmi K20 (128GB)

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!

14 Advantages Xiaomi Redmi K20 (128GB)	vs	10 Advantages Samsung Galaxy A15 (SM-A155F/DSN 128GB/6GB)
+UFS 2.1Advantage Fastest write and read storage.	vs	eMMC 5.1
+191 grams (6.69 ounces)5% Lighter	vs	200 grams (7 ounces)
+Aluminum frame, glass front/backAdvantage More resistant material	vs	Plastic body, glass front
+HDR10Advantage The HDR10 display provides vibrant colors and more details	vs	Not supported
+403 PPI2% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	396 PPI
+(triple camera) 48MP + 8MP + 13MP21% Higher resolution main camera	vs	(triple camera) 50MP + 5MP + 2MP
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures	vs	Only digital zoom
+(front) 20MP56% 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)
+(4G LTE-A) 800 Mbps167% Faster for surfing the internet and download files	vs	(4G LTE-A) 300 Mbps
+GyroscopeAdvantage Sensors help you use the device	vs	Not supported
+Proximity sensorAdvantage Sensors help you use the device	vs	Virtual proximity sensor
+Gorilla Glass 5Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
2.2GHz 64bit Octa-core (8nm)	vs	+2.2GHz 64bit Octa-core (6nm)10% More powerful processor, you can open your applications faster
Not supported	vs	+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards
8.8 millimeters (0.35 inches)	vs	+8.4 millimeters (0.33 inches)5% Thinner
AMOLED	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
60Hz	vs	+90Hz50% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
6.39"	vs	+6.5"2% Larger screen
Android 10	vs	+Android 14Advantage Android 14 is newer and safer
4000 mAh	vs	+5000 mAh25% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
18W	vs	+25W39% More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.
5.0 + A2DP/LE	vs	+5.3 + A2DP/LEAdvantage Bluetooth 5.3 + A2DP/LE is newer and faster

26 Common items in both devices

6GB LPDDR4X

128GB (109GB available) / 128GB (108GB available)

16 million

1080x2340 pixels

PDAF: phase detection autofocus / Autofocus

EIS: Digital stabilization

HDR photo on both cameras

+19 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
	Redmi K20 (128GB)	Galaxy A15 (SM-A155F/DSN 128GB/6GB)
Change model		Choose the model
Model	Redmi K20 (128GB)	Galaxy A15 (SM-A155F/DSN 128GB/6GB)
Other model names	Xiaomi Redmi K20 M1903F10A, M1903F10C, MZB7754IN, MZB7755IN	Galaxy A15 4G LTE SM-A155F/Dual-SIM NFC
Country or region available	China, India	(Global, International), Turkey
Brand	Xiaomi	Samsung
Release date	6/1/2019	12/16/2023, Announced: 12/11/2023
Depth	8.8 millimeters (0.35 inches)	8.4 millimeters (0.33 inches)
Size (width x height)	74.3 x 156.7 millimeters (2.93 x 6.17 in)	76.8 x 160.1 millimeters (3.02 x 6.3 in)
Weight	191 grams (6.69 ounces)	200 grams (7 ounces)
Build, materials	Aluminum frame, glass front/back	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Redmi K20 (128GB)	Galaxy A15 (SM-A155F/DSN 128GB/6GB)
Display type	AMOLED	Super AMOLED
Screen size	6.39" inches	6.5" inches
Screen-to-body ratio	~86.1% (screen-to-body ratio)	~84.3% (screen-to-body ratio)
Display resolution	1080x2340 pixels (19.5:9)	1080x2340 pixels (19.5:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	403 PPI	396 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Not supported
Refresh rate	60Hz	90Hz
Display features	600nits[typ] HDR10	800nits[peak]
🤖 Operating System
	Redmi K20 (128GB)	Galaxy A15 (SM-A155F/DSN 128GB/6GB)
System version	Android 9.0 Pie	Android 14
Firmware update	Android 10	feature not registered
User Interface	feature not registered	One UI 6.1
⚙️ Processor
	Redmi K20 (128GB)	Galaxy A15 (SM-A155F/DSN 128GB/6GB)
Chipset	64bit: Qualcomm Snapdragon 730 (SM7150-AA) (8nm)	64bit: MediaTek Helio G99 (6nm)
CPU	Octa-core, 2 processors: 2x 2.2GHz Kryo 470 Gold (Dual-core) 6x 1.8GHz Kryo 470 Silver (Hexa-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 618 (610MHz)	ARM Mali-G57 MC2
Performance (benchmark)	feature not registered	AnTuTu: 317085 (v9), 375321 (v10) Geekbench: 1928 (v5), 1936 (v6)
💽 Memory and storage
	Redmi K20 (128GB)	Galaxy A15 (SM-A155F/DSN 128GB/6GB)
RAM memory	6GB LPDDR4X	6GB LPDDR4X
Internal storage	128GB (109GB available) UFS 2.1	128GB (108GB available) eMMC 5.1
External storage	Not supported	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Redmi K20 (128GB)	Galaxy A15 (SM-A155F/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	800/150 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	CDMA 800 (China), GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	MZB7754IN, MZB7755IN, MZB7756IN version: UMTS 850/900/1900/2100 M1903F10A, M1903F10C, M1903F10T version: CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100	UMTS 850/900/2100
Primary 4G network	LTE Cat15/13 VoLTE MZB7754IN, MZB7755IN, MZB7756IN version: LTE (Bands 1, 3, 5, 7, 8) TD-LTE (Bands 38, 40, 41) M1903F10A, M1903F10C, M1903F10T version: LTE (Bands 1, 3, 5, 7, 8) TD-LTE (Bands 34, 38, 39, 40, 41)	LTE Cat7 (1, 3, 5, 7, 8, 20, 28) 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 850/900/2100
Secondary 4G network	Not supported	LTE Cat7 (1, 3, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
📷 Camera
	Redmi K20 (128GB)	Galaxy A15 (SM-A155F/DSN 128GB/6GB)
Back camera (main camera)	(triple camera) 48 megapixels 8MP telephoto f/2.453mm1/4"1.12µmPDAF2x-optical-zoom 13MP ultrawide f/2.412mm1/3"1.12µm	(triple camera) 50 megapixels 5MP ultrawide f/2.2 2MP macro f/2.4
Main camera resolution	8000x6000 pixels	8160x6120 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	Full HD (1920x1080) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/1.8 (aperture)	f/1.8 (aperture)
Focal length	26mm lens	feature not registered
Sensor size	1/2" inches	feature not registered
Pixel size	0.8µm pixel	feature not registered
Autofocus	PDAF: phase detection autofocus	Autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Digital and optical zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	feature not registered	1080p@30fps 720p@120fps (slow motion)
📸 Front camera
	Redmi K20 (128GB)	Galaxy A15 (SM-A155F/DSN 128GB/6GB)
Front camera (secondary)	20 megapixels *Motorized pop-up camera (slider)	13 megapixels
Front camera resolution	5184x3840 pixels	4128x3096 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	0.8µm pixel	feature not registered
🔉 Sound and multimedia
	Redmi K20 (128GB)	Galaxy A15 (SM-A155F/DSN 128GB/6GB)
Loudspeaker	Supported	Mono sound (not stereo)
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM	FM (RDS)
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Redmi K20 (128GB)	Galaxy A15 (SM-A155F/DSN 128GB/6GB)
USB	USB 2.0 Type-C, USB OTG On-The-Go	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	5.0 + A2DP/LE	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	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Redmi K20 (128GB)	Galaxy A15 (SM-A155F/DSN 128GB/6GB)
Sensors	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Redmi K20 (128GB)	Galaxy A15 (SM-A155F/DSN 128GB/6GB)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	4000 mAh	5000 mAh
Charger, watts	18W (9V/2A) Wired fast 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
	Redmi K20 (128GB)	Galaxy A15 (SM-A155F/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: Carbon black, Flame red, Glacier blue • MIUI 10 • HDR display • 24-bit/192kHz audio • Quick Charge 4+	• Colors: Brave Black, Optimistic Blue, Magical Blue, Personality Yellow
☢️ Radiation rate
	Redmi K20 (128GB)	Galaxy A15 (SM-A155F/DSN 128GB/6GB)
SAR 1.6W/kg (USA, Mexico, etc.)	1.07W/kg (head), 0.72W/kg (body)	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.42W/kg (head), 1.29W/kg (body)