Motorola Primus (XT621) vs LG Optimus Black (P970)
Side by side comparison between Motorola Primus vs LG Optimus Black phones, differences, pros, cons and full specifications. What's the better?
,
vs
4"
IPS
IPS
480x800
5
MP
MP
2mp
512MB
RAM
RAM
Single-core
1500
mAh
mAh
(Removable)
What's the better phone? LG Optimus Black (P970)
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 
10 Advantages | 28 Common items in both devices |
| 4GB (1GB available) |
| Until 32GB microSD, microSDHC |
| 16 million |
| 480x800 pixels |
| 233 PPI |
| 4" |
| (back) 5MP |
| +21 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 | ||
| Motorola Primus (XT621) | LG Optimus Black (P970) | |
| Change model | ||
| Model | Primus (XT621) | Optimus Black (P970) |
| Other model names | Nextel Motorola Primus XT621, Motorola XT621 Primus | LG Optimus P970H, LG Ignite, LG Schwarz |
| Country or region available |   (Global, International), (Latin America) |   (Global, International), Germany, USA |
| Brand | Motorola | LG |
| Release date | 1/1/2013 | 5/9/2011 |
| Depth | 12.3 millimeters (0.48 inches) | 9.2 millimeters (0.36 inches) |
| Size (width x height) | 60 x 119 millimeters (2.36 x 4.69 in) | 64 x 122 millimeters (2.52 x 4.8 in) |
| Weight | 145 grams (5.08 ounces) | 109 grams (3.82 ounces) |
| Build, materials | feature not registered | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Motorola Primus (XT621) | LG Optimus Black (P970) | |
| Display type | TFT LCD | TFT NOVA IPS |
| Screen size | 4" inches | 4" inches |
| Screen-to-body ratio | ~63.8% (screen-to-body ratio) | ~58.3% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 480x800 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 233 PPI | 233 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass | Gorilla Glass |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | Not supported |
🤖 Operating System | ||
| Motorola Primus (XT621) | LG Optimus Black (P970) | |
| System version | Android 2.3.6 Gingerbread | Android 2.2.1 Froyo |
| Firmware update | feature not registered | Android 4.0.4 Ice Cream Sandwich ICS |
| User Interface | feature not registered | Optimus 2.0 Gesture UI |
⚙️ Processor | ||
| Motorola Primus (XT621) | LG Optimus Black (P970) | |
| Chipset | 32bit: Qualcomm Snapdragon S2 MSM8255T (45nm) | 32bit: Texas Instruments OMAP 3630 (45nm) |
| CPU | Single-core, 1 processor: 1x 1.2GHz Scorpion (Single-core) | Single-core, 1 processor: 1x 1GHz ARM Cortex-A8 (Single-core) |
| GPU graphical controller | Qualcomm Adreno 205 | PowerVR SGX530 MP1 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Motorola Primus (XT621) | LG Optimus Black (P970) | |
| RAM memory | 1GB LPDDR2 | 512MB LPDDR |
| Internal storage | 4GB (1GB available) | 2GB (1GB available) |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Motorola Primus (XT621) | LG Optimus Black (P970) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 7.2 Mbps | 7.2/5.76 Mbps |
| Network technology | 2G, 3G | 2G |
| 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 | iDEN 800 UMTS 2100/1900/1700 | Not supported |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | iDEN, GPRS, EDGE, UMTS, HSDPA, HSUPA | GPRS, EDGE, UMTS, HSDPA, HSUPA |
| Secondary 2G network | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| Motorola Primus (XT621) | LG Optimus Black (P970) | |
| Back camera (main camera) | 5 megapixels | 5 megapixels |
| Main camera resolution | 2592x1944 pixels | 2592x1944 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | HD (1280x720) 24 fps |
| Flash | LED flash | LED flash |
| Focal aperture | feature not registered | 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 |
| Autofocus | Not supported | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | Not supported | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection |
| BSI sensor | Not supported | Not supported |
| HDR | Not supported | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Motorola Primus (XT621) | LG Optimus Black (P970) | |
| Front camera (secondary) | Not supported | 2 megapixels |
| Front camera resolution | Not supported | 1600x1200 pixels |
| Video recording (secondary) | Not supported | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | 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 | ||
| Motorola Primus (XT621) | LG Optimus Black (P970) | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| Active noise cancellation | Not supported | 1 microphone |
| Radio | FM | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, DivX, Xvid, H.264, H.263, WMV |
| Audio formats | MP3, WAV, AAC+ | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| Motorola Primus (XT621) | LG Optimus Black (P970) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 2.1 + A2DP | 2.1 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g/n [wifi4] (2.4GHz) WiFi hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Motorola Primus (XT621) | LG Optimus Black (P970) | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Motorola Primus (XT621) | LG Optimus Black (P970) | |
| Battery type | Li-Ion: lithium-ion (Removable) BP7X | Li-Ion: lithium-ion (Removable) BL-44JN |
| Battery capacity | 1860 mAh | 1500 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | feature not registered | 6 hours |
| Standby | feature not registered | 350 hours (14.6 days) |
➕ Other features | ||
| Motorola Primus (XT621) | LG Optimus Black (P970) | |
| Call control | Voice recorder | 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 | Not supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, Flash player | HTML, XHTML, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black • Push-to-Talk (PTT) • WiFi hotspot Java framework | • Colors: Black, Pink, Silver, White, Brown Java framework |
☢️ Radiation rate | ||
| Motorola Primus (XT621) | LG Optimus Black (P970) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 1.23W/kg (head), 0.42W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.73W/kg (head), 0.31W/kg (body) | 1.27W/kg (head), 1.43W/kg (body) |