In depth comparison and review of Microsoft Lumia 640 XL LTE Dual Sim and Nokia G21. 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 | Microsoft Lumia 640 XL LTE Dual Sim | Nokia G21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 157.9 mm | 164.6 mm | Nokia G21 has greater height than Microsoft Lumia 640 XL LTE Dual Sim. |
| Width | 81.5 mm | 75.9 mm | Microsoft Lumia 640 XL LTE Dual Sim has greater width than Nokia G21. |
| Depth | 9 mm | 8.5 mm | Nokia G21 is narrower than Microsoft Lumia 640 XL LTE Dual Sim. |
| Weight | 171 g | 190 g | Microsoft Lumia 640 XL LTE Dual Sim is lighter than Microsoft Lumia 640 XL LTE Dual Sim. |
| Body Colour | Black | Nordic blue | Dusk | |
| Body Material | - | Polycarbonate | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.4 W/kg (body), 0.69 W/kg (head) | 1.048 W/kg (body), 0.339 W/kg (head) | |
| Integrated Components | FM radio | FM radio | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset / AV composite out - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Micro SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Microsoft Lumia 640 XL LTE Dual Sim | Nokia G21 |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Screen Size (Display Size) | 5.7" | 6.5" | Nokia G21 has larger screen size than Microsoft Lumia 640 XL LTE Dual Sim. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 1600 x 720 pixels | Nokia G21 has better screen resolution than Microsoft Lumia 640 XL LTE Dual Sim. |
| Display Format | HD | HD+ | |
| Pixel Density | 259 ppi | - | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 400 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Display Refresh Rate | - | 90 Hz | |
| Touch Sampling Rate | - | 180 Hz | |
| Display Features | ClearBlack | V-notch display, High brightness mode | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 3 (scratch resistant glass) | - |
| PROCESSOR | Microsoft Lumia 640 XL LTE Dual Sim | Nokia G21 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 400 | Unisoc | |
|---|---|---|---|
| Processor Number | - | T606 | |
| Clock Speed | 1.2 GHz | 1.6 GHz | Nokia G21 has higher clock speed than Microsoft Lumia 640 XL LTE Dual Sim. |
| Processor Core Qty | Quad-core | 8-core | Nokia G21 has higher processor core quantity than Microsoft Lumia 640 XL LTE Dual Sim. |
| MEMORY | Microsoft Lumia 640 XL LTE Dual Sim | Nokia G21 |
|---|
| RAM | 1 GB | 4 GB | Nokia G21 has more RAM than Microsoft Lumia 640 XL LTE Dual Sim. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 8 GB | 64 GB | Nokia G21 has more internal memory than Microsoft Lumia 640 XL LTE Dual Sim. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC, microSD, microSDXC - up to 512 GB |
| CAMERA | Microsoft Lumia 640 XL LTE Dual Sim | Nokia G21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 50 Megapixel | Nokia G21 has better camera resolution than Microsoft Lumia 640 XL LTE Dual Sim. |
| Sensor Size | - | 1/2.76" | |
| Sensor Type | BSI | CMOS | |
| Lens Aperture | F/2.0 | F/1.8 | Nokia G21 has better lens aperture than Microsoft Lumia 640 XL LTE Dual Sim. |
| Lens Construction | - | 5-element | |
| Pixel Size | - | 0.64 μm | |
| Focus Adjustment | Automatic | - | |
| Minimum Focal Length (Focal Distance) | 28 mm | - | |
| Digital Zoom | 4x | - | |
| Light Source | LED light | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) | - | |
| Camera Features (Functions) | Carl Zeiss optic, Lumia Refocus | AI imaging technology |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Camera Functions (2nd Camera) | - | Macro camera |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Camera Functions (3rd Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 8 Megapixel | Nokia G21 has better front camera resolution than Microsoft Lumia 640 XL LTE Dual Sim. |
| BATTERY AND CHARGING | Microsoft Lumia 640 XL LTE Dual Sim | Nokia G21 |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 5050 mAh | Nokia G21 has larger battery capacity than Microsoft Lumia 640 XL LTE Dual Sim. |
|---|---|---|---|
| Standby Time | 888 hours | - | |
| Talk Time | 1800 minutes | - | |
| Run Time Details | Talk (GSM): up to 1800 min Talk (WCDMA): up to 1440 min Playback (video): up to 11 hrs Playback (Music): up to 98 hrs Active online usage (Wi-Fi): up to 14 hrs Standby (dual SIM): up to 888 hrs |
Mixed usage: up to 72 hrs | |
| Battery Technology | Lithium Ion | - |
| CELLULAR | Microsoft Lumia 640 XL LTE Dual Sim | Nokia G21 |
|---|
| Technology | WCDMA (UMTS) / GSM | - | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Windows Phone OS 8.1 with Lumia Denim update (upgradable to Windows 10) | Android 11 | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, Galileo |
| COMMUNICATIONS | Microsoft Lumia 640 XL LTE Dual Sim | Nokia G21 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 20, Band 28 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 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 DD, FDD 700 APT | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 5.0 | |
| Bluetooth Profiles | HFP, OPP, PAN, A2DP, AVRCP, HID, PBAP, MAP, GATT | - | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| WLAN Security | WEP, WPA, WPA2, TKIP, AES | - | |
| Communication Features | Mobile Email client, Internet browser, LTE Cat.4 | - | |
| Messaging Services | Skype, WhatsApp, SMS, MMS | - |
| MEDIA | Microsoft Lumia 640 XL LTE Dual Sim | Nokia G21 |
|---|
| Supported Digital Audio Standards | AAC, AMR, MP3 | - | |
|---|---|---|---|
| Supported Digital Video Standards | VC-1, AVC, MPEG-4, WMV, H.264, H.263 | - | |
| Sound Enhancements | - | OZO spatial sound recording |
| FEATURES | Microsoft Lumia 640 XL LTE Dual Sim | Nokia G21 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, magnetometer | Accelerometer, ambient light sensor, proximity sensor | |
| Security Devices | - | Face recognition, fingerprint reader (side) | |
| Security Technology | - | Face Unlock | |
| Personal Information Management | Calendar, synchronization with PC, calculator, reminder, alarm clock | - | |
| Dual SIM Card Capability | Yes | - | |
| Additional Phone Features | TTY compatible, DLNA Certified, Text-to-Speech (text recognition), sharing media via DLNA, Kid's Corner, Noise Cancellation Technology, Lumia Color profile, Word Flow keyboard, Power Saving Mode, SensorCore technology | Dual microphones, Fast Charging, Google Assistant Button, 3 years of Security Updates, 2 years of OS upgrades, guaranteed upgrade to Android 12 |
| OTHERS | Microsoft Lumia 640 XL LTE Dual Sim | Nokia G21 |
|---|
| Included Accessories | Power adapter | USB-C cable, screen protector (pre-applied), 10W charger |
|---|
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