ZTE V821 vs Samsung Galaxy A15 (SM-A155M/N 256GB)
Side by side comparison between ZTE V821 vs Samsung Galaxy A15 phones, differences, pros, cons and full specifications. What's the better?
,
vs
6.5"
AMOLED
AMOLED
1080x2340
50
MP
MP
13mp
8GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy A15 (SM-A155M/N 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!
3 Advantages 
26 Advantages | 7 Common items in both devices |
| Only digital zoom |
| Hands-free calling |
| Vibrating alert |
| 3.5mm jack |
| FM / FM (RDS) |
| A-GPS, GeoTagging / A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS |
| MicroUSB 2.0 / USB 2.0 Type-C, USB OTG On-The-Go |
| + 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 | ||
| ZTE V821 | Galaxy A15 (SM-A155M/N 256GB) | |
| Change model | ||
| Model | ZTE V821 | Galaxy A15 (SM-A155M/N 256GB) |
| Other model names | ZTE V821, ZTE GV821, ZTE GSM V821 Dual Chip, Dual SIM | Galaxy A15 4G LTE SM-A155M/NFC (Single-SIM) |
| Country or region available | feature not registered |   (Latin America), Peru |
| Brand | ZTE | Samsung |
| Release date | 6/1/2011 | 12/16/2023, Announced: 12/11/2023 |
| Depth | 12.4 millimeters (0.49 inches) | 8.4 millimeters (0.33 inches) |
| Size (width x height) | 61 x 110 millimeters (2.4 x 4.33 in) | 76.8 x 160.1 millimeters (3.02 x 6.3 in) |
| Weight | 120 grams (4.2 ounces) | 200 grams (7 ounces) |
| Build, materials | feature not registered | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| ZTE V821 | Galaxy A15 (SM-A155M/N 256GB) | |
| Display type | CSTN - passive matrix | Super AMOLED |
| Screen size | 2.4" inches | 6.5" inches |
| Screen-to-body ratio | ~26.6% (screen-to-body ratio) | ~84.3% (screen-to-body ratio) |
| Display resolution | 320x240 pixels | 1080x2340 pixels (19.5:9) |
| Touchscreen | Resistive Single touch 1-point | Capacitive Multitouch |
| Pixel density (dot pitch) | 167 PPI | 396 PPI |
| Colors | 65 thousand | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | feature not registered | 90Hz |
| Display features | feature not registered | 800nits[peak] |
🤖 Operating System | ||
| ZTE V821 | Galaxy A15 (SM-A155M/N 256GB) | |
| System version | Android 2.2.1 Froyo | Android 14 |
| Firmware update | feature not registered | Android 15 |
| User Interface | feature not registered | One UI 6.1 / 7.0 |
⚙️ Processor | ||
| ZTE V821 | Galaxy A15 (SM-A155M/N 256GB) | |
| Chipset | MediaTek MT6516 | 64bit: MediaTek Helio G99 (6nm) |
| CPU | Single-core, 1 processor: Single-core ARM926EJ-S rev 5 (Single-core) | Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A76 (Dual-core) 6x 2GHz ARM Cortex-A55 (Hexa-core) |
| GPU graphical controller | feature not registered | ARM Mali-G57 MC2 |
| Performance (benchmark) | feature not registered | AnTuTu: 317085 (v9), 375321 (v10) Geekbench: 1928 (v5), 1936 (v6) |
💽 Memory and storage | ||
| ZTE V821 | Galaxy A15 (SM-A155M/N 256GB) | |
| RAM memory | feature not registered | 8GB LPDDR4X |
| Internal storage | 256MB (100MB available) | 256GB (236GB available) eMMC 5.1 |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| ZTE V821 | Galaxy A15 (SM-A155M/N 256GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) Standard mini-SIM (2FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 0.236 Mbps | 300/150 Mbps |
| Network technology | 2G | 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 | Not supported | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | Not supported | LTE Cat7 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS | Not supported |
📷 Camera | ||
| ZTE V821 | Galaxy A15 (SM-A155M/N 256GB) | |
| Back camera (main camera) | 2 megapixels | (triple camera) 50 megapixels 5MP ultrawide f/2.2 2MP macro f/2.4 |
| Main camera resolution | 1600x1200 pixels | 8160x6120 pixels |
| Video recording (primary) | QCIF (176x144) | Full HD (1920x1080) 30 fps |
| Flash | Not supported | LED flash |
| Focal aperture | feature not registered | f/1.8 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | Not supported | Autofocus |
| Touch focus | feature not registered | Supported |
| Image stabilization | feature not registered | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | feature not registered | Face detection, Smile detection |
| BSI sensor | feature not registered | Supported |
| HDR | feature not registered | HDR photo on both cameras |
| Camera extras | feature not registered | 1080p@30fps 720p@120fps (slow motion) |
📸 Front camera | ||
| ZTE V821 | Galaxy A15 (SM-A155M/N 256GB) | |
| Front camera (secondary) | Not supported | 13 megapixels |
| Front camera resolution | Not supported | 4128x3096 pixels |
| Video recording (secondary) | Not supported | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.0 (aperture) |
| 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 | ||
| ZTE V821 | Galaxy A15 (SM-A155M/N 256GB) | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| Active noise cancellation | feature not registered | 2 microphones |
| Radio | FM | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| ZTE V821 | Galaxy A15 (SM-A155M/N 256GB) | |
| 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 | 2.1 + A2DP | 5.3 + A2DP/LE |
| WiFi | 802.11 b/g [wifi3] (2.4GHz) | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | feature not registered | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS |
| NFC | Not supported | Supported |
| Infrared port | feature not registered | Not supported |
🧭 Sensors | ||
| ZTE V821 | Galaxy A15 (SM-A155M/N 256GB) | |
| Sensors | Not supported | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (side-mounted) Virtual proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| ZTE V821 | Galaxy A15 (SM-A155M/N 256GB) | |
| Battery type | Li-Ion: lithium-ion (Removable) Li3709T42P3h483757 | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 900 mAh | 5000 mAh |
| Charger, watts | Wired charging | 25W Wired fast charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 7.5 hours | 51 hours (2.1 days) |
| Standby | 316.7 hours (13.2 days) | feature not registered |
➕ Other features | ||
| ZTE V821 | Galaxy A15 (SM-A155M/N 256GB) | |
| Call control | Voice recorder | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS, MMS, E-mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Fixed QWERTY keyboard | Not supported |
| Miscellaneous | • Colors: Black on red • WiFi hotspot • Java framework | • Colors: Brave Black, Optimistic Blue, Magical Blue, Personality Yellow |
☢️ Radiation rate | ||
| ZTE V821 | Galaxy A15 (SM-A155M/N 256GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |