Samsung Galaxy M55s (SM-M558B/DS 256GB) vs Sony Ericsson Vivaz Pro (U8a)
Side by side comparison between Samsung Galaxy M55s vs Sony Ericsson Vivaz Pro phones, differences, pros, cons and full specifications. What's the better?
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6.7"
AMOLED
AMOLED
1080x2400
50
MP
MP
50mp
8GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
What's the better phone? Samsung Galaxy M55s (SM-M558B/DS 256GB)
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!
31 Advantages 
6 Advantages | 12 Common items in both devices |
| Plastic body, glass front / Plastic body |
| 16 million |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| Accelerometer |
| Ambient light sensor |
| +5 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 M55s (SM-M558B/DS 256GB) | Sony Ericsson Vivaz Pro (U8a) | |
| Model | Galaxy M55s (SM-M558B/DS 256GB) | Vivaz Pro (U8a) |
| Other model names | Galaxy M55s 5G SM-M558B/Dual-SIM | Sony Ericsson Vivaz Pro U8, SE Kanna |
| Country or region available |   Bangladesh, India |    (Latin America), Canada, USA |
| Brand | Samsung | Sony Ericsson |
| Release date | 9/26/2024, Announced: 9/24/2024 | 5/1/2010 |
| Depth | 7.8 millimeters (0.31 inches) | 15 millimeters (0.59 inches) |
| Size (width x height) | 76.5 x 163.9 millimeters (3.01 x 6.45 in) | 52 x 109 millimeters (2.05 x 4.29 in) |
| Weight | 180 grams (6.3 ounces) | 117 grams (4.1 ounces) |
| Build, materials | Plastic body, glass front | Plastic body |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Galaxy M55s (SM-M558B/DS 256GB) | Sony Ericsson Vivaz Pro (U8a) | |
| Display type | Super AMOLED | TFT LCD |
| Screen size | 6.7" inches | 3.2" inches |
| Screen-to-body ratio | ~86.4% (screen-to-body ratio) | ~49.8% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 360x640 pixels |
| Touchscreen | Capacitive Multitouch 10-points | Resistive Single touch 1-point |
| Pixel density (dot pitch) | 393 PPI | 229 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Scratch-resistant glass |
| Refresh rate | 120Hz | feature not registered |
| Display features | Always-On Display | feature not registered |
🤖 Operating System | ||
| Galaxy M55s (SM-M558B/DS 256GB) | Sony Ericsson Vivaz Pro (U8a) | |
| System version | Android 14 | Symbian 9.4 S60 5th Edition Symbian^1 |
| Firmware update | Android 15 | feature not registered |
| User Interface | One UI 6.1 / 7.0 | feature not registered |
⚙️ Processor | ||
| Galaxy M55s (SM-M558B/DS 256GB) | Sony Ericsson Vivaz Pro (U8a) | |
| Chipset | 64bit: Qualcomm Snapdragon 7 Gen 1 (SM7450-AB) (4nm) | 32bit |
| 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) | Single-core, 1 processor: 1x 720MHz ARM Cortex-A8 (Single-core) |
| GPU graphical controller | Qualcomm Adreno 644 (443MHz) | PowerVR SGX530 |
| Performance (benchmark) | AnTuTu: 582102 (v10) | feature not registered |
💽 Memory and storage | ||
| Galaxy M55s (SM-M558B/DS 256GB) | Sony Ericsson Vivaz Pro (U8a) | |
| RAM memory | 8GB LPDDR4X | 256MB SDRAM |
| Internal storage | 256GB (233GB available) UFS 2.2 | 512MB (75MB available) |
| External storage | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Until 16GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy M55s (SM-M558B/DS 256GB) | Sony Ericsson Vivaz Pro (U8a) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 3000/1024 Mbps | 7.2/2 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 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 | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/1900/2100 |
| 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 | Not supported |
| 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 | CSD, GPRS, EDGE, UMTS, HSDPA, HSUPA |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| 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 | Not supported |
📷 Camera | ||
| Galaxy M55s (SM-M558B/DS 256GB) | Sony Ericsson Vivaz Pro (U8a) | |
| Back camera (main camera) | (triple camera) 50 megapixels 8MP ultrawide f/2.2123° 2MP macro f/2.4 | 5 megapixels |
| Main camera resolution | 8160x6120 pixels | 2560x1920 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | HD (1280x720) 24 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/1.56" inches | feature not registered |
| Pixel size | 1µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Autofocus |
| Touch focus | Supported | Not 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 |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo on both cameras | Not supported |
| Camera extras | 4K@30fps 1080p@30/60fps 720p@240fps (slow motion) | feature not registered |
📸 Front camera | ||
| Galaxy M55s (SM-M558B/DS 256GB) | Sony Ericsson Vivaz Pro (U8a) | |
| Front camera (secondary) | 50 megapixels | Not supported |
| Front camera resolution | 8160x6120 pixels | Not supported |
| Video recording (secondary) | 4K UHD (3840x2160) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.4 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| Galaxy M55s (SM-M558B/DS 256GB) | Sony Ericsson Vivaz Pro (U8a) | |
| Loudspeaker | Stereo sound | Supported |
| Active noise cancellation | 2 microphones | feature not registered |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, WMV, 3GP, RV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WMA, WAV, RA, AAC, M4A |
🔌 Connectivity | ||
| Galaxy M55s (SM-M558B/DS 256GB) | Sony Ericsson Vivaz Pro (U8a) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | Type-C reversible connector | 3.5mm jack |
| TV output | USB Type-C (reversible) | Proprietary TV-out |
| Bluetooth | 5.2 + A2DP/LE | 2.1 + A2DP |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g [wifi3] (2.4GHz) |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy M55s (SM-M558B/DS 256GB) | Sony Ericsson Vivaz Pro (U8a) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Proximity sensor | Accelerometer Ambient light sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy M55s (SM-M558B/DS 256GB) | Sony Ericsson Vivaz Pro (U8a) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Removable) EP500 |
| Battery capacity | 5000 mAh | 1200 mAh |
| Charger, watts | 45W Wired fast charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | feature not registered | 5.2 hours |
| Standby | feature not registered | 440 hours (18.3 days) |
➕ Other features | ||
| Galaxy M55s (SM-M558B/DS 256GB) | Sony Ericsson Vivaz Pro (U8a) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice recorder |
| 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 | feature not registered |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Retractable QWERTY keyboard |
| Miscellaneous | • Colors: Thunder Black, Coral Green | • Colors: Black, White • 8GB microSD included • 3D stereo sound • Continuous autofocus • Touch capture • WisePilot navigation • Java framework |
☢️ Radiation rate | ||
| Galaxy M55s (SM-M558B/DS 256GB) | Sony Ericsson Vivaz Pro (U8a) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.93W/kg (head) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |