ZTE Tempo X (N9137) vs Alcatel OT-991 (Single-sim)
Side by side comparison between ZTE Tempo X vs Alcatel OT-991 phones, differences, pros, cons and full specifications. What's the better?
,
vs
4"
TFT
TFT
320x480
3.1
MP
MP
0.3mp
256MB
RAM
RAM
Single-core
1500
mAh
mAh
(Removable)
What's the better phone? ZTE Tempo X (N9137)
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!
20 Advantages 
3 Advantages | 15 Common items in both devices |
| Until 32GB microSD, microSDHC |
| LED flash |
| Only digital zoom |
| Capacitive |
| Multitouch |
| Accelerometer |
| Proximity sensor |
| +8 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 Tempo X (N9137) | Alcatel OT-991 (Single-sim) | |
| Change model | ||
| Model | Tempo X (N9137) | OT-991 (Single-sim) |
| Other model names | Boost Mobile ZTE Tempo X, Virgin Mobile ZTE N9137 | Alcatel One Touch 991, Alcatel 991 |
| Country or region available |  USA | feature not registered |
| Brand | ZTE | Alcatel |
| Release date | 9/1/2017 | 6/1/2012 |
| Depth | 9.1 millimeters (0.36 inches) | 10.8 millimeters (0.43 inches) |
| Size (width x height) | 71.9 x 145.5 millimeters (2.83 x 5.73 in) | 68 x 122 millimeters (2.68 x 4.8 in) |
| Weight | 142 grams (4.97 ounces) | 131 grams (4.59 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| ZTE Tempo X (N9137) | Alcatel OT-991 (Single-sim) | |
| Display type | TFT IPS LCD | TFT LCD |
| Screen size | 5" inches | 4" inches |
| Screen-to-body ratio | ~65.9% (screen-to-body ratio) | ~57.4% (screen-to-body ratio) |
| Display resolution | 480x854 pixels | 320x480 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 196 PPI | 144 PPI |
| Colors | 16 million | 260 thousand |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| ZTE Tempo X (N9137) | Alcatel OT-991 (Single-sim) | |
| System version | Android 7.1.1 Nougat | Android 2.3.6 Gingerbread |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| ZTE Tempo X (N9137) | Alcatel OT-991 (Single-sim) | |
| Chipset | 32bit: Qualcomm Snapdragon 210 MSM8909 (28nm) | 32bit: MediaTek MT6573 |
| CPU | Quad-core, 1 processor: 4x 1.1GHz ARM Cortex-A7 (Quad-core) | Single-core, 1 processor: 1x 800MHz ARM11 (Single-core) |
| GPU graphical controller | Qualcomm Adreno 304 | PowerVR SGX531 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| ZTE Tempo X (N9137) | Alcatel OT-991 (Single-sim) | |
| RAM memory | 1GB LPDDR3 | 256MB |
| Internal storage | 8GB (3GB available) | 512MB (150MB available) |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| ZTE Tempo X (N9137) | Alcatel OT-991 (Single-sim) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) micro-SIM (3FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 150/50 Mbps | 7.2 Mbps |
| Network technology | 2G, 3G, 4G | 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 | CDMA 800/1900, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 EV-DO RevA UMTS 850/1700/1900 | Not supported |
| Primary 4G network | LTE Cat4 700/850/1700/1900 (Bands 2,4,5,12,13,25,26) TD-LTE 2500 (Bands 41) | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE | GPRS, EDGE, UMTS, HSDPA |
| 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 | ||
| ZTE Tempo X (N9137) | Alcatel OT-991 (Single-sim) | |
| Back camera (main camera) | 5 megapixels | 3.1 megapixels |
| Main camera resolution | 2560x1920 pixels | 2048x1536 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | VGA (720x480) 30 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 | Autofocus | Not supported |
| Touch focus | Supported | feature not registered |
| Image stabilization | EIS: Digital stabilization | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | feature not registered |
| BSI sensor | Not supported | feature not registered |
| HDR | HDR photo only main camera | feature not registered |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| ZTE Tempo X (N9137) | Alcatel OT-991 (Single-sim) | |
| Front camera (secondary) | 2 megapixels | 0.3 megapixels |
| Front camera resolution | 1600x1200 pixels | 640x480 pixels |
| Video recording (secondary) | VGA (640x480) | 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 | ||
| ZTE Tempo X (N9137) | Alcatel OT-991 (Single-sim) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | feature not registered |
| Radio | Not supported | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.264 |
| Audio formats | MP3, OGG, eAAC+ | MP3, WAV, WMA, AAC+ |
🔌 Connectivity | ||
| ZTE Tempo X (N9137) | Alcatel OT-991 (Single-sim) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.1 + A2DP | 4.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Not supported | feature not registered |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | feature not registered |
🧭 Sensors | ||
| ZTE Tempo X (N9137) | Alcatel OT-991 (Single-sim) | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| ZTE Tempo X (N9137) | Alcatel OT-991 (Single-sim) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 2200 mAh | 1500 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 15 hours | 10 hours |
| Standby | feature not registered | 400 hours (16.7 days) |
➕ Other features | ||
| ZTE Tempo X (N9137) | Alcatel OT-991 (Single-sim) | |
| Call control | Voice dialing, Voice recorder | 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 | HTML, XHTML, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black | • Colors: Black, White • HAC (M3/T3) • WiFi hotspot Java framework |
☢️ Radiation rate | ||
| ZTE Tempo X (N9137) | Alcatel OT-991 (Single-sim) | |
| 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 |