Xiaomi Redmi K20 (128GB) vs Samsung Galaxy A3 Duos (SM-A300H/DS)
Side by side comparison between Xiaomi Redmi K20 vs Samsung Galaxy A3 phones, differences, pros, cons and full specifications. What's the better?
,
6.39"
AMOLED
AMOLED
1080x2340
48
MP
MP
20mp
6GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
vs
4.5"
AMOLED
AMOLED
540x960
8
MP
MP
5mp
1GB
RAM
RAM
Quad-core
1900
mAh
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!
19 Common items in both devices |
Aluminum frame, glass front/back / Aluminum body, glass front |
60Hz |
16 million |
PDAF: phase detection autofocus / Autofocus |
EIS: Digital stabilization |
Capacitive |
Multitouch |
+12 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 Clear highlight📱 Model features | ||
Redmi K20 (128GB) | Galaxy A3 Duos (SM-A300H/DS) | |
Model | Redmi K20 (128GB) | Galaxy A3 Duos (SM-A300H/DS) |
Other model names | Xiaomi Redmi K20 M1903F10A, M1903F10C, MZB7754IN, MZB7755IN | Galaxy A3 (3G) SM-A300H/Dual-Sim |
Country or region available | ![]() ![]() China, India | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Angola, Saudi Arabia, Côte d'Ivoire, Egypt, United Arab Emirates, India, Indonesia, Morocco, Mozambique, Pakistan |
Brand | Xiaomi | Samsung |
Release date | 6/1/2019 | 11/1/2014 |
Depth | 8.8 millimeters (0.35 inches) | 6.9 millimeters (0.27 inches) |
Size (width x height) | 74.3 x 156.7 millimeters (2.93 x 6.17 in) | 65.5 x 130.1 millimeters (2.58 x 5.12 in) |
Weight | 191 grams (6.69 ounces) | 110 grams (3.85 ounces) |
Build, materials | Aluminum frame, glass front/back | Aluminum body, glass front |
Protection against water and others | Not supported | Not supported |
📲 Display | ||
Redmi K20 (128GB) | Galaxy A3 Duos (SM-A300H/DS) | |
Display type | AMOLED | Super AMOLED |
Screen size | 6.39" inches | 4.5" inches |
Screen-to-body ratio | ~86.1% (screen-to-body ratio) | ~65.5% (screen-to-body ratio) |
Display resolution | 1080x2340 pixels (19.5:9) | 540x960 pixels (16:9) |
Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
Pixel density (dot pitch) | 403 PPI | 245 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Gorilla Glass 5 | Gorilla Glass 4 |
Refresh rate | 60Hz | 60Hz |
Display features | 600nits[typ] HDR10 | Not supported |
🤖 Operating System | ||
Redmi K20 (128GB) | Galaxy A3 Duos (SM-A300H/DS) | |
System version | Android 9.0 Pie | Android 4.4.4 KitKat |
Firmware update | Android 10 | Android 6.0.1 Marshmallow |
User Interface | feature not registered | TouchWiz UX |
⚙️ Processor | ||
Redmi K20 (128GB) | Galaxy A3 Duos (SM-A300H/DS) | |
Chipset | 64bit: Qualcomm Snapdragon 730 (SM7150-AA) (8nm) | 64bit: Qualcomm Snapdragon 410 (MSM8916) (28nm) |
CPU | Octa-core, 2 processors: 2x 2.2GHz Kryo 470 Gold (Dual-core) 6x 1.8GHz Kryo 470 Silver (Hexa-core) | Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A53 (Quad-core) |
GPU graphical controller | Qualcomm Adreno 618 (610MHz) | Qualcomm Adreno 306 (400MHz) |
Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
Redmi K20 (128GB) | Galaxy A3 Duos (SM-A300H/DS) | |
RAM memory | 6GB LPDDR4X | 1GB LPDDR2 |
Internal storage | 128GB (109GB available) UFS 2.1 | 16GB (12GB available) eMMC 4.5 |
External storage | Not supported | Until 64GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | ||
Redmi K20 (128GB) | Galaxy A3 Duos (SM-A300H/DS) | |
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 | 42/5.76 Mbps |
Network technology | 2G, 3G, 4G | 2G, 3G |
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 850/900/1900/2100 |
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) | Not supported |
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+ |
Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
Secondary 3G network | Not supported | Not supported |
Secondary 4G network | Not supported | Not supported |
Secondary data network | GPRS, EDGE | GPRS, EDGE |
📷 Camera | ||
Redmi K20 (128GB) | Galaxy A3 Duos (SM-A300H/DS) | |
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 | 8 megapixels |
Main camera resolution | 8000x6000 pixels | 3264x2448 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/2.4 (aperture) |
Focal length | 26mm lens | 31mm lens |
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 | Not supported |
HDR | HDR photo on both cameras | HDR photo only main camera |
Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
Redmi K20 (128GB) | Galaxy A3 Duos (SM-A300H/DS) | |
Front camera (secondary) | 20 megapixels *Motorized pop-up camera (slider) | 5 megapixels |
Front camera resolution | 5184x3840 pixels | 2592x1944 pixels |
Video recording (secondary) | Full HD (1920x1080) | WVGA (800x480) |
Front flash | Not supported | Not supported |
Focal aperture | f/2.2 (aperture) | f/2.2 (aperture) |
Focal length | feature not registered | 23mm lens |
Sensor size | feature not registered | feature not registered |
Pixel size | 0.8µm pixel | feature not registered |
🔉 Sound and multimedia | ||
Redmi K20 (128GB) | Galaxy A3 Duos (SM-A300H/DS) | |
Loudspeaker | Supported | Mono sound (not stereo) |
Active noise cancellation | 2 microphones or more | 2 microphones or more |
Radio | FM | FM |
TV | Not supported | Not supported |
Video formats | MP4, H.265, H.264, H.263, XviD | MP4, H.264, H.263, WMV |
Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
Redmi K20 (128GB) | Galaxy A3 Duos (SM-A300H/DS) | |
USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
Audio output | 3.5mm jack | 3.5mm jack |
TV output | Not supported | Not supported |
Bluetooth | 5.0 + A2DP/LE | 4.0 + A2DP |
WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi hotspot |
DLNA | Not supported | Not supported |
GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS |
NFC | Supported | Not supported |
Infrared port | Not supported | Not supported |
🧭 Sensors | ||
Redmi K20 (128GB) | Galaxy A3 Duos (SM-A300H/DS) | |
Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor | Accelerometer Ambient light sensor ANT+ Compass Proximity sensor |
Vibrating alert | Supported | Supported |
🔋 Battery | ||
Redmi K20 (128GB) | Galaxy A3 Duos (SM-A300H/DS) | |
Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Non removable) |
Battery capacity | 4000 mAh | 1900 mAh |
Charger, watts | 18W (9V/2A) Wired fast charging | 3.5W (5V/0.7A) Wired charging |
Inductive / wireless charging | feature not registered | Not supported |
Talk time autonomy | feature not registered | 12 hours |
Standby | feature not registered | feature not registered |
➕ Other features | ||
Redmi K20 (128GB) | Galaxy A3 Duos (SM-A300H/DS) | |
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: Black, White, Blue, Silver, Pink, Gold • Java framework |
☢️ Radiation rate | ||
Redmi K20 (128GB) | Galaxy A3 Duos (SM-A300H/DS) | |
SAR 1.6W/kg (USA, Mexico, etc.) | 1.07W/kg (head), 0.72W/kg (body) | 0.989W/kg (head), 1.09W/kg (body) |
SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.288W/kg (head), 0.553W/kg (body) |