In depth comparison and review of Sony XPERIA X Compact and LG K40. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | Sony XPERIA X Compact | LG K40 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | F5321 | LM-X420EMW | |
| Form Factor | Touch | Touch | |
| Height | 129 mm | 153 mm | LG K40 has greater height than Sony XPERIA X Compact. |
| Width | 65 mm | 71.9 mm | LG K40 has greater width than Sony XPERIA X Compact. |
| Depth | 9.5 mm | 8.3 mm | LG K40 is narrower than Sony XPERIA X Compact. |
| Weight | 135 g | 145 g | Sony XPERIA X Compact is lighter than Sony XPERIA X Compact. |
| Body Colour | White | Blue mist | Universe black | New Aurora Black | Moroccan blue | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.25 W/kg (body), 1.08 W/kg (head) | 1.597 W/kg (body), 0.518 W/kg (head) | |
| Integrated Components | FM radio | FM radio | |
| Connector Type | Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
|
| SIM Card Type (Size) | Nano SIM | - | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | Sony XPERIA X Compact | LG K40 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | IPS | |
| Screen Size (Display Size) | 4.6" | 5.7" | LG K40 has larger screen size than Sony XPERIA X Compact. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 1440 x 720 pixels | LG K40 has better screen resolution than Sony XPERIA X Compact. |
| Display Format | HD | HD | |
| Pixel Density | - | 282 ppi | |
| Aspect Ratio | - | 18:9 | |
| Colour Depth | 16.7 million colours | - | |
| Display Enhancement Technology | Super Vivid mode, Dynamic Contrast Enhancement | - | |
| Display Features | 2.5D curved glass | Curved glass, FullVision display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass) | - |
| PROCESSOR | Sony XPERIA X Compact | LG K40 |
|---|
| Processor Type (CPU) | Qualcomm | MediaTek | |
|---|---|---|---|
| Processor Number | MSM8956 | MT6762 | |
| Clock Speed | - | 2 GHz | |
| Processor Core Qty | 6-core | 8-core | LG K40 has higher processor core quantity than Sony XPERIA X Compact. |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 510 | PowerVR GE8320 |
| MEMORY | Sony XPERIA X Compact | LG K40 |
|---|
| RAM | 3 GB | 2 GB | Sony XPERIA X Compact has more RAM than LG K40. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 32 GB | Both phones have the same internal memory capacity. |
| User Memory | 20 GB | 20.2 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSDHC, microSDXC - up to 2 TB |
| CAMERA | Sony XPERIA X Compact | LG K40 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 23 Megapixel | 16 Megapixel | Sony XPERIA X Compact has better camera resolution than LG K40. |
| Sensor Size | - | 1/3" | |
| Sensor Name | Sony Exmor RS sensor | - | |
| Lens Aperture | F/2.0 | F/2.0 | Both phones have the same camera lens aperture. |
| Pixel Size | - | 1 μm | |
| Focus Adjustment | Automatic | Automatic | |
| Minimum Focal Length (Focal Distance) | 120 mm | - | |
| Digital Zoom | 8x | - | |
| Special Effects | HDR, Night Scene | - | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Red-Eye Reduction, Sweep Panorama, AR Effect mode, SteadyShot, manual mode, Intelligent Active Mode, Timeshift video, Style Portrait | - | |
| Face Recognition (Face ID) | Smile shutter | - | Sony XPERIA X Compact has face detection. |
| Light Source | LED light | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) | - | |
| Camera Features (Functions) | Quick Launch, Superior Auto, Object tracking, G lens, Scene recognition, BIONZ image processing engine, Sound Photo, Touch Capture, Hand Shutter, Triple sensing technology, Stereo Audio Recording, Predictive Hybrid Autofocus | Phase Detect Auto-Focus (PDAF), GIF Creation, 8 different scenes |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 8 Megapixel | LG K40 has better front camera resolution than Sony XPERIA X Compact. |
| Sensor Size (Front) | - | 1/4" | |
| Sensor Name (Front) | Sony Exmor RS sensor | - | |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Pixel Size (Front) | - | 1.12 μm | |
| Camera Modes (Front) | - | Portrait mode | |
| Light Source (Front) | - | LED flash | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) | - | |
| Camera Features (Front) | G lens | - |
| BATTERY AND CHARGING | Sony XPERIA X Compact | LG K40 |
|---|
| Battery Capacity (Battery Size) | 2700 mAh | 3000 mAh | LG K40 has larger battery capacity than Sony XPERIA X Compact. |
|---|---|---|---|
| Standby Time | 750 hours | 100 hours | Sony XPERIA X Compact has longer standby time than LG K40. |
| Talk Time | 846 minutes | 480 minutes | Sony XPERIA X Compact has longer battery life when making calls than LG K40. |
| Run Time Details | Talk (GSM): up to 660 min Standby (GSM): up to 710 hrs Talk (WCDMA): up to 846 min Standby (WCDMA): up to 750 hrs Standby (LTE): up to 670 hrs Playback (Music): up to 65 hrs Playback (video): up to 10.8 hrs |
Talk: up to 480 min Standby: up to 100 hrs |
|
| Battery Technology | - | Lithium Ion |
| CELLULAR | Sony XPERIA X Compact | LG K40 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 6.0.1 (Marshmallow) | Android 8.1 Oreo | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | A-GPS, GLONASS, BeiDou | GPS |
| COMMUNICATIONS | Sony XPERIA X Compact | LG K40 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 19, Band 20, Band 26, Band 28, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 3, Band 7, Band 8, Band 20, Band 38 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1800+, FDD 2600, FDD 900, FDD 800 DD, TDD 2600 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 LE | |
| Bluetooth Profiles | HFP, HSP, OPP, PAN, SPP, GAP, A2DP, AVRCP, HID, GAVDP, PBAP, MAP, DIP, GATT, HOGP | - | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| WLAN Security | WEP, WPA, WPA2, TKIP, AES, EAP SIM, EAP-TTLS/MSCHAPv2, EAP-AKA, EAP-TLS, PEAPv0/EAP-MSCHAPv2, PEAPv1/EAP-GTC | - | |
| Messaging Services | Google+ Hangouts, SMS, MMS | SMS, MMS |
| MEDIA | Sony XPERIA X Compact | LG K40 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AIFF, ASF, PCM, Ogg Vorbis, AMR, MP3, FLAC, AAC-LC, XMF, AAC +, eAAC+, MKA, MIDI, M4A, apt-X, DSF, DSDIFF, DSD, LDAC, MXMF, AWB, IMY, RTTTL, RTX, OTA, ALAC, OPUS | WMA, AAC, PCM, MP3, FLAC, AAC +, eAAC+, OPUS, AMR-WB, AMR-NB, Vorbis | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, AVI, XviD, MPEG-4, MPEG-2, 3GP, H.264, H.263, M4V, TS, WebM, VP8, 3GP2, H.265 | - | |
| Sound Enhancements | 3D surround sound (VPT) | DTS: X 3D Premium Sound |
| FEATURES | Sony XPERIA X Compact | LG K40 |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, barometer, magnetometer, gyro sensor, Time of Flight (ToF), geomagnetic sensor | Ambient light sensor, proximity sensor | |
| Security Devices | Fingerprint reader | Face recognition, fingerprint reader | |
| Additional Phone Features | TTY compatible, Radio Data Service (RDS), DLNA Certified, Text-to-Speech (text recognition), sharing media via DLNA, Screen capture, intelligent typing (SWIFTKEY), Wi-Fi Miracast, battery STAMINA mode, Glove mode, TRILUMINOS display, X-Reality engine, Clear Audio+, Clear Bass, Dynamic normaliser, Digital Noise Cancelling (DNC), Hi-Res Audio, Low power audio playback, Smart backlight control, Wi-Fi Passpoint, S-Force Front surround, Read Mode, Alarm Clock, PS4 Remote Play, Noise suppression, Smart cleaner, Qnovo Adaptive Charging | Google Lens, Google Assistant Key, AI Cam |
| OTHERS | Sony XPERIA X Compact | LG K40 |
|---|
| Included Accessories | Power adapter | Power adapter | |
|---|---|---|---|
| Compliant Standards | HAC (Hearing Aid Compatible) | MIL-STD 810G |
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