LG Optimus U (US670) vs Asus Zenfone 9 (128GB/6GB)
Side by side comparison between LG Optimus U vs Asus Zenfone 9 phones, differences, pros, cons and full specifications. What's the better?
,
3.2"
TFT
TFT
320x480
3.1
MP
MP
512MB
RAM
RAM
Single-core
1500
mAh
mAh
(Removable)
vs
5.9"
AMOLED
AMOLED
1080x2400
50
MP
MP
12mp
6GB
RAM
RAM
Octa-core
4300
mAh
mAh
(Non removable)
What's the better phone? Asus Zenfone 9 (128GB/6GB)
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 
29 Advantages | 13 Common items in both devices |
| 16 million |
| Only digital zoom |
| Autofocus / PDAF: phase detection autofocus |
| Capacitive |
| Multitouch |
| Accelerometer |
| Compass |
| +6 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 | ||
| LG Optimus U (US670) | Asus Zenfone 9 (128GB/6GB) | |
| Change model | ||
| Model | Optimus U (US670) | Zenfone 9 (128GB/6GB) |
| Other model names | US Cellular LG Optimus U US670, LG US670 | Zenfone 9z AI2202-1A028BR, AI2202-1A006EU, 90AI00C3-M000X0 |
| Country or region available |  USA |  (Global, International) |
| Brand | LG | Asus |
| Release date | 12/1/2010 | 9/15/2022, Announced: 7/28/2022 |
| Depth | 13.2 millimeters (0.52 inches) | 9.1 millimeters (0.36 inches) |
| Size (width x height) | 58.9 x 113.5 millimeters (2.32 x 4.47 in) | 68.1 x 146.5 millimeters (2.68 x 5.77 in) |
| Weight | 130 grams (4.55 ounces) | 169 grams (5.92 ounces) |
| Build, materials | feature not registered | Aluminum body, glass front, plastic back |
| Protection against water and others | Not supported | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant |
📲 Display | ||
| LG Optimus U (US670) | Asus Zenfone 9 (128GB/6GB) | |
| Display type | TFT LCD | Super AMOLED |
| Screen size | 3.2" inches | 5.9" inches |
| Screen-to-body ratio | ~45.6% (screen-to-body ratio) | ~84.2% (screen-to-body ratio) |
| Display resolution | 320x480 pixels | 1080x2400 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 180 PPI | 446 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass Victus |
| Refresh rate | feature not registered | 120Hz |
| Display features | feature not registered | 1100nits[peak] HDR10+ Always-On Display |
🤖 Operating System | ||
| LG Optimus U (US670) | Asus Zenfone 9 (128GB/6GB) | |
| System version | Android 2.2.2 Froyo | Android 12 |
| Firmware update | feature not registered | Android 13 |
| User Interface | feature not registered | ZenUI 9 |
⚙️ Processor | ||
| LG Optimus U (US670) | Asus Zenfone 9 (128GB/6GB) | |
| Chipset | 32bit: Qualcomm Snapdragon S1 MSM7627 | 64bit: Qualcomm Snapdragon 8+ Gen 1 (SM8475) (4nm) |
| CPU | Single-core, 1 processor: 1x 600MHz ARM1136EJ-S (Single-core) | Octa-core, 3 processors: 1x 3.19GHz ARM Cortex-X2 (Single-core) 3x 2.75GHz ARM Cortex-A710 (Triple-core) 4x 2GHz ARM Cortex-A510 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 200 | Qualcomm Adreno 730 (818MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 1083028 (v9) Geekbench: 4338 (v5.1) GFXBench: 89fps (ES 3.1 onscreen) |
💽 Memory and storage | ||
| LG Optimus U (US670) | Asus Zenfone 9 (128GB/6GB) | |
| RAM memory | 512MB | 6GB LPDDR5 |
| Internal storage | 512MB (140MB available) | 128GB (104GB available) UFS 3.1 |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| LG Optimus U (US670) | Asus Zenfone 9 (128GB/6GB) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card |
| SIM card | Not supported | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 0.153 Mbps | 2000/1024 Mbps |
| Network technology | 2G, 3G | 2G, 3G, 4G, 5G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Not supported | Quad-Band 850/900/1800/1900 |
| Primary 2G network | CDMA 800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO | UMTS 800/850/900/1700/1900/2100 |
| Primary 4G network | Not supported | LTE Cat20 VoLTE A version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28) TD-LTE (34, 38, 39, 40, 41, 42) B version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28) TD-LTE (34, 38, 39, 40, 41, 42) C version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 30, 66, 71) TD-LTE (34, 38, 39, 40, 41, 42) |
| Primary 5G network | Not supported | A version: SA/NSA (1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 77, 78) B version: SA/NSA (1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 41, 77, 78) C version: SA/NSA (1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 71, 77, 78) |
| Primary data network | CDMA2000 EV-DO Rev A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | UMTS 800/850/900/1700/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat20 VoLTE A version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28) TD-LTE (34, 38, 39, 40, 41, 42) B version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28) TD-LTE (34, 38, 39, 40, 41, 42) C version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 30, 66, 71) TD-LTE (34, 38, 39, 40, 41, 42) |
| Secondary data network | Not supported | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
📷 Camera | ||
| LG Optimus U (US670) | Asus Zenfone 9 (128GB/6GB) | |
| Back camera (main camera) | 3.1 megapixels | (dual camera) 50 megapixels 12MP ultrawide f/2.214.4mm113°1/2.93"1.4µmAF |
| Main camera resolution | 2048x1536 pixels | 8160x6120 pixels |
| Video recording (primary) | VGA (640x480) 15 fps | 8K UHD (7680x4320) 24 fps |
| Flash | Not supported | LED flash |
| Focal aperture | feature not registered | f/1.9 (aperture) |
| Focal length | feature not registered | 24mm (lens) |
| Sensor size | feature not registered | 1/1.56" inches |
| Pixel size | feature not registered | 1µm pixel |
| Autofocus | Autofocus | PDAF: phase detection autofocus |
| Touch focus | feature not registered | Supported |
| Image stabilization | feature not registered | OIS: Optical stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection | Face detection, Smile detection |
| BSI sensor | feature not registered | Supported |
| HDR | feature not registered | HDR photo/video on both cameras |
| Camera extras | feature not registered | 4K@30/60/120fps 1080p@30/60/240fps 720p@480fps |
📸 Front camera | ||
| LG Optimus U (US670) | Asus Zenfone 9 (128GB/6GB) | |
| Front camera (secondary) | Not supported | 12 megapixels |
| Front camera resolution | Not supported | 4000x3000 pixels |
| Video recording (secondary) | Not supported | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.5 (aperture) |
| Focal length | feature not registered | 27mm (lens) |
| Sensor size | feature not registered | 1/2.93" inches |
| Pixel size | feature not registered | 1.22µm pixel |
🔉 Sound and multimedia | ||
| LG Optimus U (US670) | Asus Zenfone 9 (128GB/6GB) | |
| Loudspeaker | Supported | Stereo sound 24-bit/192kHz |
| Active noise cancellation | feature not registered | 2 microphones or more |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, DivX, XviD, H.263, H.264, WMV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| LG Optimus U (US670) | Asus Zenfone 9 (128GB/6GB) | |
| 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 | 5.2 + A2DP/LE |
| WiFi | 802.11 b/g [wifi3] (2.4GHz) | 802.11 a/b/g/n/ac/ax [wifi6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot |
| DLNA | feature not registered | Supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC |
| NFC | Not supported | Supported |
| Infrared port | feature not registered | Not supported |
🧭 Sensors | ||
| LG Optimus U (US670) | Asus Zenfone 9 (128GB/6GB) | |
| Sensors | Accelerometer Compass Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Hall effect Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG Optimus U (US670) | Asus Zenfone 9 (128GB/6GB) | |
| Battery type | Li-Ion: lithium-ion (Removable) LGIP-400N | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 1500 mAh | 4300 mAh |
| Charger, watts | Wired charging | 30W Wired fast charging 5W Reverse charging by cable Quick Charge 4 USB Power Delivery 3.0 |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 5 hours | feature not registered |
| Standby | 200 hours (8.3 days) | feature not registered |
➕ Other features | ||
| LG Optimus U (US670) | Asus Zenfone 9 (128GB/6GB) | |
| 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 | 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 | Not supported | Not supported |
| Miscellaneous | • Colors: Blue • 2GB microSD included • LG 3Way Sync • HAC (M4/T4) • WiFi hotspot • Java framework | • Colors: Black, Blue, Red, Silver |
☢️ Radiation rate | ||
| LG Optimus U (US670) | Asus Zenfone 9 (128GB/6GB) | |
| 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 |