📱 Model features |
| Samsung Galaxy A02 (SM-A022F/DS 32GB/3GB) | Motorola Moto G51 (128GB/4GB) |
| Model | Galaxy A02 (SM-A022F/DS 32GB/3GB) | Moto G51 (128GB/4GB) |
| Other model names | Galaxy A02 SM-A022F/Dual-SIM (32GB + 3GB RAM) | Lenovo Moto G51 5G (XT2171-1, XT2171-2, XT2171-3) |
| Country or region available | 
(Global, International) |
(Global, International) |
| Brand | Samsung | Motorola |
| Release date | 1/27/2021 | 11/30/2021, Announced: 11/3/2021 |
| Depth | 9.1 millimeters (0.36 inches) | 9.1 millimeters (0.36 inches) |
| Size (width x height) | 75.9 x 164 millimeters (2.99 x 6.46 in) | 76.5 x 170.5 millimeters (3.01 x 6.71 in) |
| Weight | 206 grams (7.21 ounces) | 208 grams (7.28 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | IP52 certified: protection against dust and splashing |
🤖 Operating System |
| Samsung Galaxy A02 (SM-A022F/DS 32GB/3GB) | Motorola Moto G51 (128GB/4GB) |
| System version | Android 10 | Android 11 |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | My UX |
⚙️ Processor |
| Samsung Galaxy A02 (SM-A022F/DS 32GB/3GB) | Motorola Moto G51 (128GB/4GB) |
| Chipset | 64bit: MediaTek MT6739 (28nm) | 64bit: Qualcomm Snapdragon 480+ (SM4350-AC) (8nm) |
| CPU | Quad-core, 1 processor:
4x 1.5GHz ARM Cortex-A53 (Quad-core) | Octa-core, 2 processors:
2x 2.2GHz Kryo 460 (Dual-core)
6x 1.8GHz Kryo 460 (Hexa-core) |
| GPU graphical controller | PowerVR GE8100 MP1 (570MHz) | Qualcomm Adreno 619 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage |
| Samsung Galaxy A02 (SM-A022F/DS 32GB/3GB) | Motorola Moto G51 (128GB/4GB) |
| RAM memory | 3GB LPDDR3 | 4GB LPDDR4X |
| Internal storage | 32GB (22GB available)
eMMC 5.1 | 128GB (108GB available)
eMMC 5.1 |
| External storage | Until 1TB microSD, microSDXC
(dedicated slot) | Until 512GB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot) |
📲 Display |
| Samsung Galaxy A02 (SM-A022F/DS 32GB/3GB) | Motorola Moto G51 (128GB/4GB) |
| Display type | TFT PLS | TFT IPS LCD |
| Screen size | 6.5" inches | 6.8" inches |
| Screen-to-body ratio | ~81.9% (screen-to-body ratio) | ~85.6% (screen-to-body ratio) |
| Display resolution | 720x1600 pixels (20:9) | 1080x2400 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 270 PPI | 387 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | 60Hz | 120Hz |
| Display features | Not supported | Not supported |
📶 Mobile networks |
| Samsung Galaxy A02 (SM-A022F/DS 32GB/3GB) | Motorola Moto G51 (128GB/4GB) |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card
(dedicated slot) | 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 | 150/50 Mbps | 2000/1024 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G, 5G |
| Frequency, bands | Expand band detailsCollapse 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 850/900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat4 (1, 3, 5, 7, 8, 20, 28)
TD-LTE (38, 40, 41)
VoLTE | LTE Cat15 (1, 2, 3, 5, 7, 8, 18, 20, 26, 28, 32)
TD-LTE (38, 40, 41, 42, 43)
VoLTE |
| Primary 5G network | Not supported | SA/NSA (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78) |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, 5G SA/NSA |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | UMTS 850/900/1700/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat15 (1, 2, 3, 5, 7, 8, 18, 20, 26, 28, 32)
TD-LTE (38, 40, 41, 42, 43)
VoLTE |
| Secondary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, 5G SA/NSA |
📷 Camera |
| Samsung Galaxy A02 (SM-A022F/DS 32GB/3GB) | Motorola Moto G51 (128GB/4GB) |
| Back camera (main camera) | (dual camera)
13 megapixels
2MP macrof/2.4 | (triple camera)
50 megapixels
8MP ultrawidef/2.2118°1/4"1.12µm
2MP macrof/2.4 |
| Main camera resolution | 4128x3096 pixels | 8160x6120 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 60 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.9 (aperture) | f/1.8 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | 1/2.76" inches |
| Pixel size | feature not registered | 0.64µm pixel |
| Autofocus | 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 | Not supported | Supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | feature not registered | 1080p@240fps |
📸 Front camera |
| Samsung Galaxy A02 (SM-A022F/DS 32GB/3GB) | Motorola Moto G51 (128GB/4GB) |
| Front camera (secondary) | 5 megapixels | 13 megapixels |
| Front camera resolution | 2560x1920 pixels | 4128x3096 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | 1.12µm pixel |
🔉 Sound and multimedia |
| Samsung Galaxy A02 (SM-A022F/DS 32GB/3GB) | Motorola Moto G51 (128GB/4GB) |
| Loudspeaker | Supported | Mono sound (not stereo)
Dolby Atmos |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | FM | 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 |
| Samsung Galaxy A02 (SM-A022F/DS 32GB/3GB) | Motorola Moto G51 (128GB/4GB) |
| USB | MicroUSB 2.0 | 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 | 5.1 + A2DP/LE | 5.1 + A2DP/LE |
| WiFi | 802.11 b/g/n (2.4Ghz)
WiFi Direct, hotspot | 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS, GALILEO |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors |
| Samsung Galaxy A02 (SM-A022F/DS 32GB/3GB) | Motorola Moto G51 (128GB/4GB) |
| Sensors | Accelerometer
Face unlock
Virtual proximity sensor | Accelerometer
Ambient Light sensor
Face unlock
Fingerprint sensor (rear-mounted)
Gyroscope
Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery |
| Samsung Galaxy A02 (SM-A022F/DS 32GB/3GB) | Motorola Moto G51 (128GB/4GB) |
| Battery type | LiPo: Li-Ion polymer (Non removable) | LiPo: Li-Ion polymer (Non removable) |
| Battery capacity | 5000 mAh | 5000 mAh |
| Charger, watts | 10W Wired charging | 10W Wired charging |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features |
| Samsung Galaxy A02 (SM-A022F/DS 32GB/3GB) | Motorola Moto G51 (128GB/4GB) |
| 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, Blue, Red, Gray
- One UI 2.0
- Mono sound (not stereo) | - Colors: Indigo Blue, Aqua Blue, Bright Silver |
☢️ Radiation rate |
| Samsung Galaxy A02 (SM-A022F/DS 32GB/3GB) | Motorola Moto G51 (128GB/4GB) |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.645W/kg (head), 1.707W/kg (body) | feature not registered |