Samsung Galaxy M55 (SM-M556B/DS 128GB) vs Xiaomi Redmi 9 Prime (128GB)
Side by side comparison between Samsung Galaxy M55 vs Xiaomi Redmi 9 Prime phones, differences, pros, cons and full specifications. What's the better?
,
6.7"
AMOLED
AMOLED
1080x2400
50
MP
MP
50mp
8GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
6.53"
IPS
IPS
1080x2340
13
MP
MP
8mp
4GB
RAM
RAM
Octa-core
5020
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy M55 (SM-M556B/DS 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!
25 Advantages 
7 Advantages | 24 Common items in both devices |
| 128GB (105GB available) / 128GB (106GB available) |
| Until 1TB microSD, microSDXC / Until 512GB microSD, microSDXC |
| Plastic body, glass front |
| 16 million |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus |
| +17 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 | ||
| Galaxy M55 (SM-M556B/DS 128GB) | Redmi 9 Prime (128GB) | |
| Model | Galaxy M55 (SM-M556B/DS 128GB) | Redmi 9 Prime (128GB) |
| Other model names | Galaxy M55 5G SM-M556B/Dual-SIM | Xiaomi Redmi 9 Prime (M2004J19PI) |
| Country or region available |    (Global, International), Bangladesh, Mexico |  India |
| Brand | Samsung | Xiaomi |
| Release date | 3/28/2024 | 8/4/2020 |
| Depth | 7.8 millimeters (0.31 inches) | 9.1 millimeters (0.36 inches) |
| Size (width x height) | 76.5 x 163.9 millimeters (3.01 x 6.45 in) | 77.01 x 163.32 millimeters (3.03 x 6.43 in) |
| Weight | 180 grams (6.3 ounces) | 198 grams (6.93 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | Water repellent nano-coating (don't immerse) |
📲 Display | ||
| Galaxy M55 (SM-M556B/DS 128GB) | Redmi 9 Prime (128GB) | |
| Display type | Super AMOLED | TFT IPS LCD |
| Screen size | 6.7" inches | 6.53" inches |
| Screen-to-body ratio | ~86.4% (screen-to-body ratio) | ~83.2% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 393 PPI | 395 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | 120Hz | 60Hz |
| Display features | Always-On Display | 400nits[typ] |
🤖 Operating System | ||
| Galaxy M55 (SM-M556B/DS 128GB) | Redmi 9 Prime (128GB) | |
| System version | Android 14 | Android 10 |
| Firmware update | Android 15 | feature not registered |
| User Interface | One UI 6.1 / 7.0 | feature not registered |
⚙️ Processor | ||
| Galaxy M55 (SM-M556B/DS 128GB) | Redmi 9 Prime (128GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 7 Gen 1 (SM7450-AB) (4nm) | 64bit: MediaTek Helio G80 (MT6769V/CU) (12nm) |
| CPU | Octa-core, 3 processors: 1x 2.4GHz ARM Cortex-A710 (Single-core) 3x 2.36GHz ARM Cortex-A710 (Triple-core) 4x 1.8GHz ARM Cortex-A510 (Quad-core) | Octa-core, 2 processors: 2x 2GHz ARM Cortex-A75 (Dual-core) 6x 1.8GHz ARM Cortex-A55 (Hexa-core) |
| GPU graphical controller | Qualcomm Adreno 644 (443MHz) | ARM Mali-G52 MC2 (950MHz) |
| Performance (benchmark) | AnTuTu: 582102 (v10) | feature not registered |
💽 Memory and storage | ||
| Galaxy M55 (SM-M556B/DS 128GB) | Redmi 9 Prime (128GB) | |
| RAM memory | 8GB LPDDR4X | 4GB LPDDR4X |
| Internal storage | 128GB (105GB available) UFS 2.2 | 128GB (106GB available) eMMC 5.1 |
| External storage | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy M55 (SM-M556B/DS 128GB) | Redmi 9 Prime (128GB) | |
| 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) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 3000/1024 Mbps | 300/50 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 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 850/900/1900/2100 |
| Primary 4G network | LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE | LTE Cat6 (1, 3, 5, 8) TD-LTE (40, 41) VoLTE |
| Primary 5G network | SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78) | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | 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 850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | GPRS, EDGE |
📷 Camera | ||
| Galaxy M55 (SM-M556B/DS 128GB) | Redmi 9 Prime (128GB) | |
| Back camera (main camera) | (triple camera) 50 megapixels 8MP ultrawide f/2.2123° 2MP macro f/2.4 | (quad camera) 13 megapixels 8MP ultrawide f/2.2118°1/4.0"1.12µm 5MP macro f/2.4 2MP depth f/2.4 |
| Main camera resolution | 8160x6120 pixels | 4128x3096 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | 28mm (lens) |
| Sensor size | 1/1.56" inches | 1/3.1" inches |
| Pixel size | 1µm pixel | 1.12µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection 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 | Supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | 4K@30fps 1080p@30/60fps 720p@240fps (slow motion) | feature not registered |
📸 Front camera | ||
| Galaxy M55 (SM-M556B/DS 128GB) | Redmi 9 Prime (128GB) | |
| Front camera (secondary) | 50 megapixels | 8 megapixels |
| Front camera resolution | 8160x6120 pixels | 3264x2448 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.4 (aperture) | f/2.0 (aperture) |
| Focal length | feature not registered | 27mm (lens) |
| Sensor size | feature not registered | 1/4" inches |
| Pixel size | feature not registered | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Galaxy M55 (SM-M556B/DS 128GB) | Redmi 9 Prime (128GB) | |
| Loudspeaker | Stereo sound | Supported |
| Active noise cancellation | 2 microphones | 2 microphones or more |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy M55 (SM-M556B/DS 128GB) | Redmi 9 Prime (128GB) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | Type-C reversible connector | 3.5mm jack |
| TV output | USB Type-C (reversible) | USB Type-C (reversible) |
| Bluetooth | 5.2 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6] (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, QZSS | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Supported |
🧭 Sensors | ||
| Galaxy M55 (SM-M556B/DS 128GB) | Redmi 9 Prime (128GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy M55 (SM-M556B/DS 128GB) | Redmi 9 Prime (128GB) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 5000 mAh | 5020 mAh |
| Charger, watts | 45W Wired fast charging | 18W Wired fast charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | feature not registered | 31 hours (1.3 days) |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Galaxy M55 (SM-M556B/DS 128GB) | Redmi 9 Prime (128GB) | |
| 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: Dark Blue, Light Green | • Colors: Space Blue, Mint Green, Matte Black, Sunrise Flare • MIUI 11 • 10W charger included |
☢️ Radiation rate | ||
| Galaxy M55 (SM-M556B/DS 128GB) | Redmi 9 Prime (128GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.79W/kg (head), 1.09W/kg (body) | 0.85W/kg (head), 0.42W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.96W/kg (head), 0.98W/kg (body) | feature not registered |