LG X400 (K121K) vs Apple iPhone 15 Pro Max (512GB)
Side by side comparison between LG X400 vs Apple iPhone 15 Pro Max phones, differences, pros, cons and full specifications. What's the better?
,
5.3"
IPS
IPS
720x1280
13
MP
MP
5mp
2GB
RAM
RAM
Octa-core
2800
mAh
mAh
(Removable)
vs
6.7"
OLED
OLED
1290x2796
48
MP
MP
12mp
8GB
RAM
RAM
Hexa-core
4323
mAh
mAh
(Non removable)
What's the better phone? Apple iPhone 15 Pro Max (512GB)
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!
10 Common items in both devices |
Autofocus / PDAF: phase detection autofocus on both cameras |
Capacitive |
Multitouch |
Accelerometer |
Ambient light sensor |
Compass |
Proximity sensor |
+3 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 X400 (K121K) | iPhone 15 Pro Max (512GB) | |
Model | X400 (K121K) | iPhone 15 Pro Max (512GB) |
Other model names | KT LG X400, LGM-K121K, LGMK121K (Korea Telecom) | iPhone 15 Pro Max (A2849, A3105, A3106, A3108) |
Country or region available | South Korea | (Global, International) |
Brand | LG | Apple |
Release date | 2/1/2017 | 9/22/2023, Announced: 9/12/2023 |
Depth | 8 millimeters (0.31 inches) | 8.25 millimeters (0.32 inches) |
Size (width x height) | 75.29 x 148.7 millimeters (2.96 x 5.85 in) | 76.7 x 159.9 millimeters (3.02 x 6.3 in) |
Weight | 142 grams (4.97 ounces) | 221 grams (7.74 ounces) |
Build, materials | Plastic body, glass front | Titanium frame, glass front and back |
Protection against water and others | Not supported | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant |
📲 Display | ||
LG X400 (K121K) | iPhone 15 Pro Max (512GB) | |
Display type | TFT IPS LCD | Super Retina XDR OLED |
Screen size | 5.3" inches | 6.7" inches |
Screen-to-body ratio | ~69.2% (screen-to-body ratio) | ~89.8% (screen-to-body ratio) |
Display resolution | 720x1280 pixels | 1290x2796 pixels (19.5:9) |
Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
Pixel density (dot pitch) | 277 PPI | 460 PPI |
Colors | 16 million | 1 billion |
Scratch-resistant glass | Not supported | Ceramic Shield |
Refresh rate | feature not registered | 120Hz |
Display features | feature not registered | 1000nits[typ], 2000nits[peak] Dolby Vision/HDR10 Always-On Display Oleophobic coating screen True-tone Wide color gamut |
🤖 Operating System | ||
LG X400 (K121K) | iPhone 15 Pro Max (512GB) | |
System version | Android 7.0 Nougat | iOS 17 |
Firmware update | Android 8.0 Oreo | feature not registered |
User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
LG X400 (K121K) | iPhone 15 Pro Max (512GB) | |
Chipset | 64bit: MediaTek MT6750 (28nm) | 64bit: Apple A17 Pro (3nm) |
CPU | Octa-core, 2 processors: 4x 1.5GHz ARM Cortex-A53 (Quad-core) 4x 1GHz ARM Cortex-A53 (Quad-core) | Hexa-core, 2 processors: 2x 3.78GHz P-Core (Dual-core) 4x 2.1GHz E-Core (Quad-core) |
GPU graphical controller | ARM Mali-T860 MP2 520Mhz | Apple GPU Pro (6-core) |
Performance (benchmark) | feature not registered | AnTuTu: 1487226 (v10) Geekbench: 7237 (v6.0) |
💽 Memory and storage | ||
LG X400 (K121K) | iPhone 15 Pro Max (512GB) | |
RAM memory | 2GB LPDDR3 | 8GB LPDDR5 |
Internal storage | 32GB (22GB available) | 512GB (482GB available) NVMe (SSD) |
External storage | Until 256GB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
LG X400 (K121K) | iPhone 15 Pro Max (512GB) | |
Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card |
SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | e-SIM (Eletronic) |
Maximum Download / Upload | 300/50 Mbps | 5000/1024 Mbps |
Network technology | 2G, 3G, 4G | 2G, 3G, 4G, 5G |
Frequency, bands | Expand band details Collapse details | |
GSM MHz band | Tri-Band 900/1800/1900 | Quad-Band 850/900/1800/1900 |
Primary 2G network | GSM 900/1800/1900 | CDMA 800/1900, GSM 850/900/1800/1900 |
Primary 3G network | UMTS 2100 | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 |
Primary 4G network | LTE Cat6 850/900/1800/2100/2600 (Bands 1,3,5,7,8) VoLTE | LTE Cat20 VoLTE |
Primary 5G network | Not supported | SA/NSA/Sub6 () mmWave () |
Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6, mmWave |
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 | ||
LG X400 (K121K) | iPhone 15 Pro Max (512GB) | |
Back camera (main camera) | 13 megapixels | (quad camera) 48 megapixels 12MP periscope telephoto f/2.8120mm1.12µmPDAFOIS5x-optical-zoom 12MP ultrawide f/2.213mm120°1/2.55"1.4µmPDAF 0.3MP TOF 3D LiDAR-scanner |
Main camera resolution | 4160x3120 pixels | 8000x6000 pixels |
Video recording (primary) | Full HD (1920x1080) 30 fps | 4K UHD (3840x2160) 60 fps |
Flash | LED flash | Dual-LED flash |
Focal aperture | f/2.2 (aperture) | f/1.8 (aperture) |
Focal length | feature not registered | 24mm lens |
Sensor size | 1/3" inches | 1/1.28" inches |
Pixel size | 1.12µm pixel | 1.22µm pixel |
Autofocus | Autofocus | PDAF: phase detection autofocus on both cameras |
Touch focus | Supported | Supported |
Image stabilization | EIS: Digital stabilization | OIS: Optical stabilization on both cameras |
Zoom | Only digital zoom | Digital and optical zoom |
Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
BSI sensor | Not supported | Supported |
HDR | HDR photo only main camera | HDR photo/video on both cameras |
Camera extras | feature not registered | 1080p@240fps ProRes RAW Cinematic mode |
📸 Front camera | ||
LG X400 (K121K) | iPhone 15 Pro Max (512GB) | |
Front camera (secondary) | 5 megapixels | (dual front camera) 12 megapixels 0.3MP SL 3D |
Front camera resolution | 2560x1920 pixels | 4000x3000 pixels |
Video recording (secondary) | Full HD (1920x1080) | 4K UHD (3840x2160) |
Front flash | Not supported | Not supported |
Focal aperture | f/2.4 (aperture) | f/1.9 (aperture) |
Focal length | feature not registered | 23mm lens |
Sensor size | 1/5" inches | 1/3.6" inches |
Pixel size | 1.12µm pixel | feature not registered |
🔉 Sound and multimedia | ||
LG X400 (K121K) | iPhone 15 Pro Max (512GB) | |
Loudspeaker | Supported | Stereo sound Dolby Atmos |
Active noise cancellation | 2 microphones or more | 2 microphones or more |
Radio | FM (RDS) | Not supported |
TV | Digital TV | Not supported |
Video formats | MP4, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
LG X400 (K121K) | iPhone 15 Pro Max (512GB) | |
USB | MicroUSB 2.0, USB OTG On-The-Go | USB 3.1 Type-C reversible connector |
Audio output | 3.5mm jack | Type-C reversible connector |
TV output | Not supported | USB Type-C (reversible) |
Bluetooth | 4.2 + A2DP | 5.3 + A2DP/LE |
WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 a/b/g/n/ac/ax [wifi6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi hotspot |
DLNA | Not supported | Not supported |
GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC |
NFC | Supported | Supported |
Infrared port | Not supported | Not supported |
🧭 Sensors | ||
LG X400 (K121K) | iPhone 15 Pro Max (512GB) | |
Sensors | Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Face unlock Gyroscope Proximity sensor UWB (Ultra Wideband) |
Vibrating alert | Supported | Supported |
🔋 Battery | ||
LG X400 (K121K) | iPhone 15 Pro Max (512GB) | |
Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Non removable) |
Battery capacity | 2800 mAh | 4323 mAh |
Charger, watts | Wired charging | 27W Wired fast charging USB Power Delivery 3.0 |
Inductive / wireless charging | feature not registered | 15W Qi wireless charging |
Talk time autonomy | 9 hours | feature not registered |
Standby | 390 hours (16.3 days) | feature not registered |
➕ Other features | ||
LG X400 (K121K) | iPhone 15 Pro Max (512GB) | |
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, HTML5 | HTML, XHTML, HTML5 |
Antenna | Internal antenna | Internal antenna |
Qwerty physical keyboard | Not supported | Not supported |
Miscellaneous | • Colors: Black, Gold • 2.5D Arc Glass screen • LG UX 5.0 • Wide-angle 120° front camera • KnockOn, Knock Code • DMB-TV (Korea) | • Colors: Black titanium, White titanium, Blue titanium, Natural titanium • Apple Pay • Face ID • MagSafe |
☢️ Radiation rate | ||
LG X400 (K121K) | iPhone 15 Pro Max (512GB) | |
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 |