LG Optimus Link Dual (P698) vs LG X400 (K121K)
Side by side comparison between LG Optimus Link Dual vs LG X400 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
5.3"
IPS
IPS
720x1280
13
MP
MP
5mp
2GB
RAM
RAM
Octa-core
2800
mAh
mAh
(Removable)
What's the better phone? LG X400 (K121K)
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 | 14 Common items in both devices |
| Plastic body / Plastic body, glass front |
| Only digital zoom |
| Autofocus |
| Capacitive |
| Multitouch |
| Accelerometer |
| Compass |
| +7 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 Link Dual (P698) | LG X400 (K121K) | |
| Change model | ||
| Model | Optimus Link Dual (P698) | X400 (K121K) |
| Other model names | LG Optimus Link Dual-Sim, LGP698, LG-P698 | KT LG X400, LGM-K121K, LGMK121K (Korea Telecom) |
| Country or region available |     (Europe), Kazakhstan, Russia, Ukraine |  South Korea |
| Brand | LG | LG |
| Release date | 12/1/2011 | 2/1/2017 |
| Depth | 12.1 millimeters (0.48 inches) | 8 millimeters (0.31 inches) |
| Size (width x height) | 59 x 114 millimeters (2.32 x 4.49 in) | 75.29 x 148.7 millimeters (2.96 x 5.85 in) |
| Weight | 122 grams (4.27 ounces) | 142 grams (4.97 ounces) |
| Build, materials | Plastic body | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| LG Optimus Link Dual (P698) | LG X400 (K121K) | |
| Display type | TFT LCD | TFT IPS LCD |
| Screen size | 3.2" inches | 5.3" inches |
| Screen-to-body ratio | ~45.3% (screen-to-body ratio) | ~69.2% (screen-to-body ratio) |
| Display resolution | 320x480 pixels | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch 2-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 180 PPI | 277 PPI |
| Colors | 260 thousand | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | 60Hz | feature not registered |
| Display features | Not supported | feature not registered |
🤖 Operating System | ||
| LG Optimus Link Dual (P698) | LG X400 (K121K) | |
| System version | Android 2.3.4 Gingerbread | Android 7.0 Nougat |
| Firmware update | feature not registered | Android 8.0 Oreo |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| LG Optimus Link Dual (P698) | LG X400 (K121K) | |
| Chipset | 32bit: Qualcomm Snapdragon S1 (MSM7227T) (65nm) | 64bit: MediaTek MT6750 (28nm) |
| CPU | Single-core, 1 processor: 1x 800MHz ARM1136EJ-S (Single-core) | Octa-core, 2 processors: 4x 1.5GHz ARM Cortex-A53 (Quad-core) 4x 1GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 200 (226MHz) | ARM Mali-T860 MP2 520Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| LG Optimus Link Dual (P698) | LG X400 (K121K) | |
| RAM memory | 512MB LPDDR | 2GB LPDDR3 |
| Internal storage | 512MB (150MB available) | 32GB (22GB available) |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| LG Optimus Link Dual (P698) | LG X400 (K121K) | |
| 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 | 3.6 Mbps | 300/50 Mbps |
| Network technology | 2G, 3G | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Tri-Band 900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 900/1800/1900 |
| Primary 3G network | UMTS 850/2100 | UMTS 2100 |
| Primary 4G network | Not supported | LTE Cat6 850/900/1800/2100/2600 (Bands 1,3,5,7,8) VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | CSD, GPRS, EDGE, UMTS, HSDPA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, 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, EDGE | Not supported |
📷 Camera | ||
| LG Optimus Link Dual (P698) | LG X400 (K121K) | |
| Back camera (main camera) | 3.1 megapixels | 13 megapixels |
| Main camera resolution | 2048x1536 pixels | 4160x3120 pixels |
| Video recording (primary) | VGA (640x480) 24 fps | Full HD (1920x1080) 30 fps |
| Flash | Not supported | LED flash |
| Focal aperture | feature not registered | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | 1/3" inches |
| Pixel size | feature not registered | 1.12µm pixel |
| Autofocus | Autofocus | Autofocus |
| Touch focus | Not supported | Supported |
| Image stabilization | Not supported | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Not supported | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | Not supported | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| LG Optimus Link Dual (P698) | LG X400 (K121K) | |
| Front camera (secondary) | Not supported | 5 megapixels |
| Front camera resolution | Not supported | 2560x1920 pixels |
| Video recording (secondary) | Not supported | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.4 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | 1/5" inches |
| Pixel size | feature not registered | 1.12µm pixel |
🔉 Sound and multimedia | ||
| LG Optimus Link Dual (P698) | LG X400 (K121K) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | FM | FM (RDS) |
| TV | Not supported | Digital TV |
| Video formats | MP4, H.263, H.264 | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| LG Optimus Link Dual (P698) | LG X400 (K121K) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 3.0 + A2DP | 4.2 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| LG Optimus Link Dual (P698) | LG X400 (K121K) | |
| Sensors | Accelerometer Compass Proximity sensor | Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG Optimus Link Dual (P698) | LG X400 (K121K) | |
| Battery type | Li-Ion: lithium-ion (Removable) BL-44JN | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1500 mAh | 2800 mAh |
| Charger, watts | 5W Wired charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | 4.5 hours | 9 hours |
| Standby | 330 hours (13.8 days) | 390 hours (16.3 days) |
➕ Other features | ||
| LG Optimus Link Dual (P698) | LG X400 (K121K) | |
| Call control | Voice recorder | Voice dialing, Voice recorder |
| 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: Black • 2GB microSD included • LG SmartShare • LG 3Way Sync • WiFi hotspot | • Colors: Black, Gold • 2.5D Arc Glass screen • LG UX 5.0 • Wide-angle 120° front camera • KnockOn, Knock Code • DMB-TV (Korea) |
☢️ Radiation rate | ||
| LG Optimus Link Dual (P698) | LG X400 (K121K) | |
| 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 |