In depth comparison and review of LG K4 and Motorola RAZR 40 Ultra. 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 | LG K4 | Motorola RAZR 40 Ultra |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | M160 (2017) | - | |
| Form Factor | Touch | Folder (flip) - touch screen, dual screen | |
| Height | 144.7 mm | 170.83 mm | Motorola RAZR 40 Ultra has greater height than LG K4. |
| Width | 72.6 mm | 73.95 mm | Motorola RAZR 40 Ultra has greater width than LG K4. |
| Depth | 7.9 mm | 6.99 mm | Motorola RAZR 40 Ultra is narrower than LG K4. |
| Weight | 138 g | 184.5 g | LG K4 is lighter than LG K4. |
| Dimensions Details | - | Unfolded - 73.95 mm x 6.99 mm x 170.83 mm Folded - 73.95 mm x 15.1 mm x 88.42 mm |
|
| Body Colour | Black | Glacier blue | Infinite black | Viva magenta | |
| Body Material | - | Vegan leather, 7000 Series aluminium, Corning Gorilla Glass Victus | |
| Protection | - | Splashproof | |
| Waterproof (Water-resistant) | - | - | Motorola RAZR 40 Ultra is waterproof. |
| IP rating | - | IP52 | |
| SAR Value | 1.27 W/kg (body), 0.556 W/kg (head) | - | |
| 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 | Nano SIM, Electronic SIM card (e-SIM) | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | LG K4 | Motorola RAZR 40 Ultra |
|---|
| Display Type | LCD display | pOLED display | |
|---|---|---|---|
| Display Technology | IPS | Foldable AMOLED (LTPO) | |
| Foldable Display | - | Yes | |
| Display Design | - | Inward folding | |
| Screen Size (Display Size) | 5" | 6.9" | Motorola RAZR 40 Ultra has larger screen size than LG K4. |
| Screen Resolution (Display Resolution) | 480 x 854 pixels | 2640 x 1080 pixels | Motorola RAZR 40 Ultra has better screen resolution than LG K4. |
| Display Format | - | Full HD+ | |
| Pixel Density | 195 ppi | 413 ppi | Motorola RAZR 40 Ultra has better pixel density than LG K4. |
| Aspect Ratio | - | 22:9 | |
| Max Brightness | 350 cd/m² | 1400 cd/m² | Motorola RAZR 40 Ultra has better display brightness than LG K4. |
| Colour Depth | 16.7 million colours | 1.07 billion colours | Motorola RAZR 40 Ultra has better colour depth than LG K4. |
| HDR | - | Yes | Motorola RAZR 40 Ultra has HDR. |
| HDR Technology | - | HDR10+ | |
| Display Refresh Rate | - | 165 Hz | |
| Touch Sampling Rate | - | 360 Hz | |
| Display Features | - | Attentive display, Dark mode, Peak Display, 120% DCI-P3, secondary screen: 1100 nits max brightness | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 3 (scratch resistant glass) | Corning Gorilla Glass Victus (scratch resistant glass) |
| SECOND DISPLAY |
|---|
| Second Display Type | - | pOLED display - colour | |
|---|---|---|---|
| Second Display Screen Size | - | 3.6" | |
| Second Display Resolution | - | 1066 x 1056 pixels | |
| Second Display Colour Depth | - | 1.07 billion colours |
| PROCESSOR | LG K4 | Motorola RAZR 40 Ultra |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon | Qualcomm Snapdragon 8+ Gen 1 | |
|---|---|---|---|
| Clock Speed | 1.1 GHz | - | |
| Processor Core Qty | Quad-core | - | |
| Graphics System (GPU) | Qualcomm ADRENO 304 | - |
| MEMORY | LG K4 | Motorola RAZR 40 Ultra |
|---|
| RAM | 1 GB | LPDDR5 SDRAM - 8 GB | Motorola RAZR 40 Ultra has more RAM than LG K4. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 8 GB | 256 GB | Motorola RAZR 40 Ultra has more internal memory than LG K4. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC - up to 32 GB | - |
| CAMERA | LG K4 | Motorola RAZR 40 Ultra |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 5 Megapixel | 12 Megapixel | Motorola RAZR 40 Ultra has better camera resolution than LG K4. |
| Lens Aperture | F/2.6 | F/1.5 | Motorola RAZR 40 Ultra has better lens aperture than LG K4. |
| Pixel Size | - | 1.4 μm | |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Motorola RAZR 40 Ultra has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 4x | - | |
| Special Effects | HDR | HDR, Spot Colour | |
| HDR Mode | - | HDR10+ video | |
| Camera Modes | Timer mode, Cheese Shot | Panorama, Pro mode, BurstShot, super resolution mode, Super slow motion, Active photos, Portrait, Night Vision, Portrait video, Hyperlapse video, Live filter, Capture Dual, Auto night vision | |
| Face Recognition (Face ID) | Face recognition | Auto smile capture | Both phones have face detection. |
| White Balance | Automatic | - | |
| Light Source | LED light | Single LED flash | |
| Video Resolutions | 1280 x 720 (720p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps | |
| Camera Features (Functions) | Pause & Resume Recording, geotagging | Smart composition, shot optimisation, Google Lens, horizon lock |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 13 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 108 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.12 μm | |
| Camera Functions (2nd Camera) | - | Macro camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 32 Megapixel | Motorola RAZR 40 Ultra has better front camera resolution than LG K4. |
| Lens Aperture (Front) | F/2.7 | F/2.4 | Motorola RAZR 40 Ultra has better front lens aperture than LG K4. |
| Pixel Size (Front) | - | 0.7 μm | |
| Special Effects (Front) | - | HDR, photo booth, Spot Colour | |
| Camera Modes (Front) | Gesture Shot | BurstShot, Face Beauty, Timelapse video, Active photos, Selfie Mirror, Portrait video, Gesture selfie, Hyperlapse video, Live filter, Capture Dual, Portrait mode beauty, Auto night vision | |
| Face Recognition (Face ID) | Face recognition | Auto smile capture | Both phones have face detection. |
| Video Resolutions (Front) | 1280 x 720 (720p) | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps | |
| Camera Features (Front) | - | Quad Pixel technology for 1.4 µm, Selfie animation |
| BATTERY AND CHARGING | LG K4 | Motorola RAZR 40 Ultra |
|---|
| Battery Capacity (Battery Size) | 2500 mAh | 3800 mAh | Motorola RAZR 40 Ultra has larger battery capacity than LG K4. |
|---|---|---|---|
| Fast Charging Technology | - | TurboPower technology | Motorola RAZR 40 Ultra has fast charging technology. |
| Wireless Charging | - | Yes | Motorola RAZR 40 Ultra can be charged wirelessly. |
| Standby Time | 100 hours | - | |
| Talk Time | 240 minutes | - | |
| Run Time Details | Talk: up to 240 min Standby: up to 100 hrs |
- |
| CELLULAR | LG K4 | Motorola RAZR 40 Ultra |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Motorola RAZR 40 Ultra has more advanced generation mobile network. |
| Operating System | Android 6.0.1 (Marshmallow) | Android 13 | |
| User Interface | LG UX 5.0 | My UX | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | GPS | GPS, A-GPS, GLONASS, BeiDou, Galileo, LTEPP, SUPL |
| COMMUNICATIONS | LG K4 | Motorola RAZR 40 Ultra |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | EDGE, HSPA+, LTE, 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 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 34, Band 38, Band 39, Band 40, Band 41, Band 42, Band 43, Band 48, Band 66 | |
| 4G LTE Frequency | - | 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 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500, TDD 3700, TDD 3600, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n77, n78, n79 | |
| 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 TD 4500 | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11a/b/g/n/ac/ax, Wi-Fi 6E | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 5.3 | |
| Bluetooth Profiles | HFP, HSP, OPP, PAN, SPP, GAP, GOEP, A2DP, AVRCP, HID, SAP, AVCTP, AVDTP, GAVDP, PBAP, MAP, RFCOMM, DID, SDP, OBEX, HOGP | - | |
| NFC | - | Yes | Motorola RAZR 40 Ultra has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | LG K4 | Motorola RAZR 40 Ultra |
|---|
| Supported Digital Audio Standards | WMA, AAC, PCM, Ogg Vorbis, AMR, MP3, FLAC, AAC +, eAAC+, MIDI, ALAC, OPUS | - | |
|---|---|---|---|
| Supported Digital Video Standards | AVC, M-JPEG, XviD, MPEG-4, H.264, H.263, HEVC, VP8, VP9, Theora | - | |
| Sound Enhancements | - | Dolby Atmos sound technology, Spatial audio, Qualcomm Snapdragon Sound |
| FEATURES | LG K4 | Motorola RAZR 40 Ultra |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | - | |
|---|---|---|---|
| Sensors | Ambient light sensor, proximity sensor, motion sensor | Accelerometer, ambient light sensor, proximity sensor, hall sensor, light sensor, gyroscope, eCompass | |
| Security Devices | - | Face recognition, fingerprint reader (side) | |
| Security Technology | - | Face Unlock | |
| Additional Phone Features | Radio Data Service (RDS), QuickMemo function, KnockON, Capture Plus function, Knock Code function, Alarm Clock, Easy Home Clip Tray, Screen zooming | Three microphones, Game mode, dual stereo speakers |
| OTHERS | LG K4 | Motorola RAZR 40 Ultra |
|---|
| Included Accessories | USB cable, power adapter | Protective cover, power adapter, SIM card removal tool, USB-C cable | |
|---|---|---|---|
| Compliant Standards | - | IP52 |
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