Xiaomi Redmi Note 4 (32GB/3GB) vs Samsung Galaxy M21s (SM-F415F/DS)
Side by side comparison between Xiaomi Redmi Note 4 vs Samsung Galaxy M21s phones, differences, pros, cons and full specifications. What's the better?
,
5.5"
IPS
IPS
1080x1920
13
MP
MP
5mp
3GB
RAM
RAM
Octa-core
4100
mAh
mAh
(Non removable)
vs
6.4"
AMOLED
AMOLED
1080x2340
64
MP
MP
32mp
4GB
RAM
RAM
Octa-core
6000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy M21s (SM-F415F/DS)
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!
6 Advantages 
20 Advantages | 25 Common items in both devices |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| BSI sensor |
| HDR photo on both cameras |
| (front) Full HD (1920x1080) |
| +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 Clear highlight📱 Model features | ||
| Redmi Note 4 (32GB/3GB) | Galaxy M21s (SM-F415F/DS) | |
| Model | Redmi Note 4 (32GB/3GB) | Galaxy M21s (SM-F415F/DS) |
| Other model names | Redmi Note 4 Snapdragon (3GB RAM), Xiaomi MarkW | Galaxy M21s SM-F415F/Dual-Sim (4GB RAM) |
| Country or region available |    Brazil, India, (Global, International) |  (Latin America), Brazil |
| Brand | Xiaomi | Samsung |
| Release date | 1/1/2017 | 11/6/2020 |
| Depth | 8.45 millimeters (0.33 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 76 x 151 millimeters (2.99 x 5.94 in) | 75.1 x 159.2 millimeters (2.96 x 6.27 in) |
| Weight | 165 grams (5.78 ounces) | 191 grams (6.69 ounces) |
| Build, materials | Aluminum body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Redmi Note 4 (32GB/3GB) | Galaxy M21s (SM-F415F/DS) | |
| Display type | TFT IPS LCD | Super AMOLED |
| Screen size | 5.5" inches | 6.4" inches |
| Screen-to-body ratio | ~72.7% (screen-to-body ratio) | ~84.1% (screen-to-body ratio) |
| Display resolution | 1080x1920 pixels | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 401 PPI | 403 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | 420nits[peak] |
🤖 Operating System | ||
| Redmi Note 4 (32GB/3GB) | Galaxy M21s (SM-F415F/DS) | |
| System version | Android 6.0.1 Marshmallow | Android 10 |
| Firmware update | Android 7.0 Nougat | Android 12 |
| User Interface | feature not registered | One UI 2.5 / 3.1 / 4.1 |
⚙️ Processor | ||
| Redmi Note 4 (32GB/3GB) | Galaxy M21s (SM-F415F/DS) | |
| Chipset | 64bit: Qualcomm Snapdragon 625 MSM8953 (14nm) | 64bit: Samsung Exynos 9611 (10nm) |
| CPU | Octa-core, 1 processor: 8x 2GHz ARM Cortex-A53 (Octa-core) | Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 506 650Mhz | ARM Mali-G72 MP3 (850MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Redmi Note 4 (32GB/3GB) | Galaxy M21s (SM-F415F/DS) | |
| RAM memory | 3GB LPDDR3 | 4GB LPDDR4X |
| Internal storage | 32GB (22GB available) | 64GB (49GB available) UFS 2.1 |
| External storage | Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Redmi Note 4 (32GB/3GB) | Galaxy M21s (SM-F415F/DS) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 150/50 Mbps | 300/50 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 850/900/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat4 850/1800 (Bands 3,5) TD-LTE 2300 (Bands 40) | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE | 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 | UMTS 850/900/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 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 | ||
| Redmi Note 4 (32GB/3GB) | Galaxy M21s (SM-F415F/DS) | |
| Back camera (main camera) | 13 megapixels | (triple camera) 64 megapixels 8MP ultrawide f/2.2123°12mm1/4"1.12µm 5MP depth f/2.2 |
| Main camera resolution | 4128x3096 pixels | 10120x6328 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/2.0 (aperture) | f/1.8 (aperture) |
| Focal length | feature not registered | 26mm (lens) |
| Sensor size | feature not registered | 1/1.72" inches |
| Pixel size | 1.12µm pixel | 0.8µm pixel |
| Autofocus | PDAF: phase detection 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, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | feature not registered | 4K@30fps 1080p@30fps |
📸 Front camera | ||
| Redmi Note 4 (32GB/3GB) | Galaxy M21s (SM-F415F/DS) | |
| Front camera (secondary) | 5 megapixels | 32 megapixels |
| Front camera resolution | 2592x1944 pixels | 6528x4896 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 | 26mm (lens) |
| Sensor size | feature not registered | 1/2.8" inches |
| Pixel size | feature not registered | 0.8µm pixel |
🔉 Sound and multimedia | ||
| Redmi Note 4 (32GB/3GB) | Galaxy M21s (SM-F415F/DS) | |
| 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, OGG, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Redmi Note 4 (32GB/3GB) | Galaxy M21s (SM-F415F/DS) | |
| USB | MicroUSB 2.0 | USB 2.0 Type-C reversible connector |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.1 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) 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, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Not supported | Not supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Redmi Note 4 (32GB/3GB) | Galaxy M21s (SM-F415F/DS) | |
| Sensors | Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Virtual proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Redmi Note 4 (32GB/3GB) | Galaxy M21s (SM-F415F/DS) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 4100 mAh | 6000 mAh |
| Charger, watts | Wired charging | 15W Wired fast charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | feature not registered | 48 hours (2 days) |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Redmi Note 4 (32GB/3GB) | Galaxy M21s (SM-F415F/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: Black, Gold, Gray • USB OTG On-The-Go • Aluminum body • 2.5D curved glass • MIUI 8.0 • 720p@120fps slow-motion • 24-bit/192kHz audio • WiFi display | • Colors: Black, Blue |
☢️ Radiation rate | ||
| Redmi Note 4 (32GB/3GB) | Galaxy M21s (SM-F415F/DS) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.383W/kg (head) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |