CAT B15 vs ZTE Nubia Z7
Side by side comparison between CAT B15 vs ZTE Nubia Z7 phones, differences, pros, cons and full specifications. What's the better?
,
4"
TFT
TFT
480x800
5
MP
MP
0.3mp
512MB
RAM
RAM
Dual-core
2000
mAh
mAh
(Removable)
vs
5.5"
TFT
TFT
1440x2560
13
MP
MP
5mp
3GB
RAM
RAM
Quad-core
3000
mAh
mAh
(Removable)
What's the better phone? ZTE Nubia Z7
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 
27 Advantages | 18 Common items in both devices |
| TFT LCD |
| 16 million |
| Only digital zoom |
| Autofocus |
| HDR photo only main camera |
| Capacitive |
| Multitouch |
| +11 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 | ||
| CAT B15 | ZTE Nubia Z7 | |
| Change model | ||
| Model | CAT B15 | Nubia Z7 |
| Other model names | Caterpillar B15 Dual-sim | ZTE Nubia Z7 NX506J, ZTE Nubia Z7 Dual-sim |
| Country or region available |  (Global, International) | feature not registered |
| Brand | CAT | ZTE |
| Release date | 3/1/2013 | 7/1/2014 |
| Depth | 15 millimeters (0.59 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 69.5 x 125 millimeters (2.74 x 4.92 in) | 75.7 x 153.2 millimeters (2.98 x 6.03 in) |
| Weight | 170 grams (5.95 ounces) | 160 grams (5.6 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | IP67 certified: dust proof and waterproof over 1 meter and 30min. MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. | Not supported |
📲 Display | ||
| CAT B15 | ZTE Nubia Z7 | |
| Display type | TFT LCD | TFT LCD |
| Screen size | 4" inches | 5.5" inches |
| Screen-to-body ratio | ~52.4% (screen-to-body ratio) | ~71.9% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 1440x2560 pixels |
| Touchscreen | Capacitive Multitouch 2-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 233 PPI | 534 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| CAT B15 | ZTE Nubia Z7 | |
| System version | Android 4.1.2 Jelly Bean | Android 4.4.2 KitKat |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| CAT B15 | ZTE Nubia Z7 | |
| Chipset | 32bit: MediaTek MT6577 | 32bit: Qualcomm Snapdragon 801 MSM8974-AC (28nm) |
| CPU | Dual-core, 1 processor: 2x 1GHz ARM Cortex-A9 (Dual-core) | Quad-core, 1 processor: 4x 2.5GHz Krait 400 (Quad-core) |
| GPU graphical controller | PowerVR SGX531T | Qualcomm Adreno 330 578Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| CAT B15 | ZTE Nubia Z7 | |
| RAM memory | 512MB LPDDR2 | 3GB LPDDR3 |
| Internal storage | 4GB (2.49GB available) | 32GB (26GB available) |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| CAT B15 | ZTE Nubia Z7 | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card |
| SIM card | 2 slots (Dual-SIM) Standard mini-SIM (2FF) | 2 slots (Dual-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | 7.2/5.76 Mbps | 100/50 Mbps |
| Network technology | 2G, 3G | 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 | Latin America model: UMTS 850/1900 Europe/Africa model: UMTS 900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | Not supported | LTE 1800/2100/2600 |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | GPRS, EDGE |
📷 Camera | ||
| CAT B15 | ZTE Nubia Z7 | |
| Back camera (main camera) | 5 megapixels | 13 megapixels |
| Main camera resolution | 2592x1944 pixels | 4128x3096 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | Not supported | Dual-LED flash |
| 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 |
| Autofocus | Autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo only main camera | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| CAT B15 | ZTE Nubia Z7 | |
| Front camera (secondary) | 0.3 megapixels | 5 megapixels |
| Front camera resolution | 640x480 pixels | 2592x1944 pixels |
| Video recording (secondary) | VGA (640x480) | Full HD (1920x1080) |
| 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 | ||
| CAT B15 | ZTE Nubia Z7 | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, DivX, XviD, H.264, H.263, WMV |
| Audio formats | MP3, WAV, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| CAT B15 | ZTE Nubia Z7 | |
| USB | MicroUSB 2.0 | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Micro-B USB MHL-3 |
| Bluetooth | 3.0 + A2DP | 4.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Supported |
🧭 Sensors | ||
| CAT B15 | ZTE Nubia Z7 | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| CAT B15 | ZTE Nubia Z7 | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 2000 mAh | 3000 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 16 hours | 20 hours |
| Standby | 456 hours (19 days) | 500 hours (20.8 days) |
➕ Other features | ||
| CAT B15 | ZTE Nubia Z7 | |
| Call control | Voice dialing, 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 | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black • WiFi hotspot • Drop to concrete resistance from up to 1.8m • IP67 certified: dust and waterproof up to 1m for 30min • MIL-STD-810G certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant • Java framework | • Colors: Black, White • Nubia UI 2.0 • DTS sound enhancement • Dual tone flash • Java framework |
☢️ Radiation rate | ||
| CAT B15 | ZTE Nubia Z7 | |
| 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 |