Side by side comparison and review of LG K40 and Samsung Galaxy Z Fold3 5G. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | LG K40 | Samsung Galaxy Z Fold3 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | LM-X420EMW | SM-F926B/DS | |
| Form Factor | Touch | Folder - touch screen, dual screen | |
| Height | 153 mm | 158.2 mm | Samsung Galaxy Z Fold3 5G has greater height than LG K40. |
| Width | 71.9 mm | 67.1 mm | LG K40 has greater width than Samsung Galaxy Z Fold3 5G. |
| Depth | 8.3 mm | 16 mm | LG K40 is narrower than LG K40. |
| Weight | 145 g | 271 g | LG K40 is lighter than LG K40. |
| Dimensions Details | - | Folded - 67.1 mm x 16 mm x 158.2 mm Unfolded - 128.1 mm x 6.4 mm x 158.2 mm |
|
| Body Colour | New Aurora Black | Moroccan blue | Phantom black | Phantom silver | Phantom Green | |
| Body Material | - | Aluminium, Corning Gorilla Glass Victus | |
| Protection | - | Water-resistant | |
| Waterproof (Water-resistant) | - | Yes | Samsung Galaxy Z Fold3 5G is waterproof. |
| IP rating | - | IPX8 | |
| Repairability Index | - | 7.8 (out of 10) | |
| SAR Value | 1.597 W/kg (body), 0.518 W/kg (head) | 1.036 W/kg (head), 1.443 W/kg (body) | |
| Integrated Components | FM radio | - | |
| Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | - | Nano SIM, Electronic SIM card (e-SIM) | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | LG K40 | Samsung Galaxy Z Fold3 5G |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | IPS | Infinity Flex Dynamic AMOLED 2X | |
| Foldable Display | - | Yes | |
| Display Design | - | Inward folding | |
| Screen Size (Display Size) | 5.7" | 7.6" | Samsung Galaxy Z Fold3 5G has larger screen size than LG K40. |
| Screen Resolution (Display Resolution) | 1440 x 720 pixels | 2208 x 1768 pixels | Samsung Galaxy Z Fold3 5G has better screen resolution than LG K40. |
| Display Format | HD | QXGA+ | |
| Pixel Density | 282 ppi | 374 ppi | Samsung Galaxy Z Fold3 5G has better pixel density than LG K40. |
| Aspect Ratio | 18:9 | 22.5:18 | |
| Colour Depth | - | 16.7 million colours | |
| HDR | - | Yes | Samsung Galaxy Z Fold3 5G has HDR. |
| HDR Technology | - | HDR10+ | |
| Display Refresh Rate | - | 120 Hz | |
| Display Features | Curved glass, FullVision display | AOD(Always On Display), flex screen, Edge Lighting | |
| Display Protection (Screen Protector) | - | Samsung Ultra Thin Glass |
| SECOND DISPLAY |
|---|
| Second Display Type | - | OLED display - colour | |
|---|---|---|---|
| Second Display Screen Size | - | 6.2" | |
| Second Display Resolution | - | 2268 x 832 pixels | |
| Second Display Colour Depth | - | 16.7 million colours |
| UNFOLDED DISPLAY |
|---|
| Unfolded Display Screen Size | - | 7.6 in | |
|---|---|---|---|
| Unfolded Display Resolution | - | 2208 x 1768 pixels |
| PROCESSOR | LG K40 | Samsung Galaxy Z Fold3 5G |
|---|
| Processor Type (CPU) | MediaTek | Qualcomm Snapdragon 888 5G | |
|---|---|---|---|
| Processor Number | MT6762 | - | |
| Clock Speed | 2 GHz | 2.84 GHz | Samsung Galaxy Z Fold3 5G has higher clock speed than LG K40. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | LG K40 has 64-bit architecture. |
| Graphics System (GPU) | PowerVR GE8320 | - |
| MEMORY | LG K40 | Samsung Galaxy Z Fold3 5G |
|---|
| RAM | 2 GB | 12 GB | Samsung Galaxy Z Fold3 5G has more RAM than LG K40. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 256 GB | Samsung Galaxy Z Fold3 5G has more internal memory than LG K40. |
| User Memory | 20.2 GB | 215.7 GB | |
| Memory Interface | - | UFS 3.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | - |
| CAMERA | LG K40 | Samsung Galaxy Z Fold3 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 12 Megapixel | LG K40 has better camera resolution than Samsung Galaxy Z Fold3 5G. |
| Sensor Size | 1/3" | - | |
| Lens Type | - | Ultra wide-angle lens | |
| Lens Aperture | F/2.0 | F/2.2 | LG K40 has better lens aperture than LG K40. |
| Field of View (FoV) | - | 123 degree(s) | |
| Pixel Size | 1 μm | 1.12 μm | Samsung Galaxy Z Fold3 5G has larger camera pixel size than LG K40. |
| Optical Image Stabiliser (OIS) | - | Dual OIS (Optical Image Stabilisation) | Samsung Galaxy Z Fold3 5G has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Optical Zoom | - | 2x | |
| Digital Zoom | - | 10x | |
| Self-Timer Delay | - | Yes | |
| Special Effects | - | Auto HDR, Grid Line, Motion photos | |
| Camera Modes | - | Panorama, Slow motion mode, Pro mode, selfie mode, HYPERLAPSE, Super Slow-mo, Flowers, Greenery, Trees, Sky, Beaches, Watersides, Snow, Backlit, Text, Food, Face, Baby, Person, Dog, Cat, People, Sunset, Sunrise, City, Waterfall, Scenery, Stage, Vehicles, Drinks, Animal, Shoes, Indoor, Clothes, Night view, Portrait, Night, Mountain, Single Take, Pro Video, NIGHT HYPERLAPSE, Portrait video, Director's View | |
| Face Recognition (Face ID) | - | Face detection | Samsung Galaxy Z Fold3 5G has face detection. |
| Light Source | LED flash | High CRI LED flash | |
| Video Resolutions | - | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Hyperlapse 4K video support at 30 fps, Super Steady 1080p video support at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), GIF Creation, 8 different scenes | Playback zoom, blink detection, QR-code scanner, VDIS (Video Digital Image Stabilisation), Tracking AF, Video location tags, AR sticker, Scene Optimiser, Lens smudge, Flaw detection, Shot suggestions, AR Emoji, blur detection, HDR10+ recording, Super steady, Zoom-In Mic, HEIF image capture, AR Doodle, Microphone Control, HEVC (High Efficiency Video coding), Dual preview, Auto framing, Capture View mode, Corning Gorilla Glass DX (protective lens glass) |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 12 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/1.8 | |
| Field of View (2nd Camera) | - | 83 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.8 μm | |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Samsung Galaxy Z Fold3 5G has optical stabilisation of the second camera. |
| Camera Features (2nd Camera) | - | Dual Pixel AF |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 12 Megapixel | |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Telephoto lens | |
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Field of View (3rd Camera) | - | 45 degree(s) | |
| Pixel Size (3rd Camera) | - | 1 μm | |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Samsung Galaxy Z Fold3 5G has optical stabilisation of the third camera. |
| Camera Features (3rd Camera) | - | Phase Detect Auto-Focus (PDAF) |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 10 Megapixel | Samsung Galaxy Z Fold3 5G has better front camera resolution than LG K40. |
| Sensor Size (Front) | 1/4" | - | |
| Lens Aperture (Front) | F/2.0 | F/2.2 | LG K40 has better front lens aperture than LG K40. |
| Field of View (Front) | - | 80 degree(s) | |
| Pixel Size (Front) | 1.12 μm | 1.22 μm | Samsung Galaxy Z Fold3 5G has larger front camera pixel size than LG K40. |
| Special Effects (Front) | - | Auto HDR, Grid Line | |
| Camera Modes (Front) | Portrait mode | - | |
| Light Source (Front) | LED flash | - |
| SECOND FRONT CAMERA |
|---|
| Sensor Resolution (2nd Front) | - | 4 Megapixel | |
|---|---|---|---|
| Lens Aperture (2nd Front) | - | F/1.8 | |
| Field of View (2nd Front) | - | 80 degree(s) | |
| Pixel Size (2nd Front) | - | 2 μm |
| BATTERY AND CHARGING | LG K40 | Samsung Galaxy Z Fold3 5G |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 4400 mAh | Samsung Galaxy Z Fold3 5G has larger battery capacity than LG K40. |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 2.0, Adaptive Fast Charging | Samsung Galaxy Z Fold3 5G has fast charging technology. |
| Wireless Charging | - | Yes | Samsung Galaxy Z Fold3 5G can be charged wirelessly. |
| Wireless Charging Standards | - | WPC, PMA, Qi, Fast Wireless Charging, Wireless PowerShare | |
| Standby Time | 100 hours | - | |
| Talk Time | 480 minutes | 2040 minutes | Samsung Galaxy Z Fold3 5G has longer battery life when making calls than LG K40. |
| Run Time Details | Talk: up to 480 min Standby: up to 100 hrs |
Active online usage (LTE): up to 12 hrs Active online usage (Wi-Fi): up to 12 hrs Playback (wireless video): up to 18 hrs Playback (wireless audio): up to 63 hrs Talk (4G): up to 2040 min |
|
| Battery Technology | Lithium Ion | - |
| CELLULAR | LG K40 | Samsung Galaxy Z Fold3 5G |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Samsung Galaxy Z Fold3 5G has more advanced generation mobile network. |
| Operating System | Android 8.1 Oreo | Android 10 | |
| Intelligent Assistant | Google Assistant | Bixby | |
| Payment Technology | - | Samsung Pay | |
| Navigation | GPS | GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | LG K40 | Samsung Galaxy Z Fold3 5G |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE, LAA, 5G NR FR1 | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 7, Band 8, Band 20, Band 38 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41, Band 66 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 2600, FDD 900, FDD 800 DD, TDD 2600 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n77, n78, n40 | |
| 5G NR Frequency | - | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3700, TDD TD 3500, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac/ax | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.2 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Ultra-Wideband (UWB) | - | Yes | Samsung Galaxy Z Fold3 5G has UWB wireless technology. |
| Messaging Services | SMS, MMS | - |
| MEDIA | LG K40 | Samsung Galaxy Z Fold3 5G |
|---|
| Supported Digital Audio Standards | WMA, AAC, PCM, MP3, FLAC, AAC +, eAAC+, OPUS, AMR-WB, AMR-NB, Vorbis | WAV, WMA, AAC, PCM, AMR, MP3, FLAC, XMF, OGG, MIDI, APE (Monkey's Audio), M4A, DSF, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, DFF, MID, DSD64, DSD128 | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | |
| Sound Enhancements | DTS: X 3D Premium Sound | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, Dolby Digital sound |
| FEATURES | LG K40 | Samsung Galaxy Z Fold3 5G |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Ambient light sensor, proximity sensor | Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, geomagnetic sensor, light sensor | |
| Security Devices | Face recognition, fingerprint reader | Face recognition, fingerprint reader (side) | |
| Additional Phone Features | Google Lens, Google Assistant Key, AI Cam | Multitasking, MIMO technology, notification flashlight, Samsung KNOX, Split Screen, High AOP Mic, Smart View, Samsung DeX support, Bixby Vision, Secure Folder function, TalkBack, Dual Audio, Bixby Routines, Intelligent Performance Enhancer, Samsung Smart Switch, dual battery, Flex mode, Multi Active Window, Bluetooth Scalable Codec, S Pen support |
| OTHERS | LG K40 | Samsung Galaxy Z Fold3 5G |
|---|
| Included Accessories | Power adapter | SIM card removal tool, USB-C cable | |
|---|---|---|---|
| Compliant Standards | MIL-STD 810G | VDE, IPX8 | |
| Max Depth of Water Resistance | - | 1.5 m |
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