In depth comparison and review of Google Pixel 4a and Microsoft Surface Duo 2. 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 | Google Pixel 4a | Microsoft Surface Duo 2 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | G025J | - | |
| Form Factor | Touch | Folder - dual screen | |
| Height | 144 mm | 145.2 mm | Microsoft Surface Duo 2 has greater height than Google Pixel 4a. |
| Width | 69.4 mm | 92.1 mm | Microsoft Surface Duo 2 has greater width than Google Pixel 4a. |
| Depth | 8.2 mm | 11 mm | Google Pixel 4a is narrower than Google Pixel 4a. |
| Weight | 143 g | 284 g | Google Pixel 4a is lighter than Google Pixel 4a. |
| Dimensions Details | - | Unfolded - 184.5 mm x 5.5 mm x 145.2 mm | |
| Body Colour | Just black | Glacier | Obsidian | |
| Body Material | Polycarbonate | Corning Gorilla Glass | |
| Waterproof (Water-resistant) | - | - | |
| Repairability Index | - | 3.9 (out of 10) | |
| SAR Value | 1.19 W/kg (body), 1.18 W/kg (head) | 0.726 W/kg (head), 1.478 W/kg (body) | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM, Electronic SIM card (e-SIM) | Nano SIM, Electronic SIM card (e-SIM) | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | Google Pixel 4a | Microsoft Surface Duo 2 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | OLED | AMOLED | |
| Foldable Display | - | Yes | |
| Display Design | - | Both directions folding | |
| Screen Size (Display Size) | 5.8" | 5.8" | Both phones have the same screen size. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 1344 x 1892 pixels | Microsoft Surface Duo 2 has better screen resolution than Google Pixel 4a. |
| Display Format | Full HD+ | - | |
| Pixel Density | 443 ppi | 401 ppi | Google Pixel 4a has better pixel density than Microsoft Surface Duo 2. |
| Aspect Ratio | 19.5:9 | 13:9 | |
| Max Brightness | - | 800 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | 100000:1 | - | |
| HDR | Yes | Yes | Both phones have HDR. |
| Display Refresh Rate | - | 90 Hz | |
| Display Features | Always-on display, Now Playing, True black level, display with transmissive hole | DCI-P3 Wide colour gamut, 100% sRGB, Dual PixelSense Fusion Displays | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 3 (scratch resistant glass) | Corning Gorilla Glass Victus (scratch resistant glass) |
| SECOND DISPLAY |
|---|
| Second Display Type | - | OLED display - colour | |
|---|---|---|---|
| Second Display Screen Size | - | 5.8" | |
| Second Display Resolution | - | 1344 x 1892 pixels |
| UNFOLDED DISPLAY |
|---|
| Unfolded Display Screen Size | - | 8.3 in | |
|---|---|---|---|
| Unfolded Display Resolution | - | 2688 x 1892 pixels |
| PROCESSOR | Google Pixel 4a | Microsoft Surface Duo 2 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 730 | Qualcomm Snapdragon 888 5G | |
|---|---|---|---|
| Clock Speed | 2.2 GHz | - | |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Google Pixel 4a has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 618 | - |
| MEMORY | Google Pixel 4a | Microsoft Surface Duo 2 |
|---|
| RAM | LPDDR4X SDRAM - 6 GB | LPDDR5 SDRAM - 8 GB | Microsoft Surface Duo 2 has more RAM than Google Pixel 4a. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
| CAMERA | Google Pixel 4a | Microsoft Surface Duo 2 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 12.2 Megapixel | 12 Megapixel | Google Pixel 4a has better camera resolution than Microsoft Surface Duo 2. |
| Lens Aperture | F/1.7 | F/1.7 | Both phones have the same camera lens aperture. |
| Field of View (FoV) | 77 degree(s) | - | |
| Pixel Size | 1.4 μm | 1.4 μm | Both phones have the same camera pixel size. |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | Both phones have optical image stabilization. |
| Focus Adjustment | Automatic | - | |
| Digital Zoom | - | 10x | |
| Special Effects | Blur | HDR | |
| HDR Mode | HDR+ | - | |
| Camera Modes | Portrait mode, Night Sight | Night mode, Auto mode, low-light shots, Panorama mode with wide dynamic range, slow motion video at 120 or 240fps | |
| Light Source | LED flash | Dual 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, 1280 x 720 (720p) at 60 fps, 1920 x 1080 (1080p) at 120 fps, 1280 x 720 (720p) at 240 fps | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps | |
| Camera Features (Functions) | Electronic Image Stabiliser (EIS), Dual Pixel Phase Detect Auto-Focus (PDAF), Share in a snap | Dual Pixel Phase Detect Auto-Focus (PDAF), Smooth Zoom, HEVC (High Efficiency Video coding), HDR video recording, multi-frame photo capture, dynamic range scene detection |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 12 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Telephoto lens | |
| Lens Aperture (2nd Camera) | - | F/2.4 | |
| Pixel Size (2nd Camera) | - | 1 μm | |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Microsoft Surface Duo 2 has optical stabilisation of the second camera. |
| Optical Zoom | - | 2x | |
| Camera Features (2nd Camera) | - | Phase Detect Auto-Focus (PDAF) |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 16 Megapixel | |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (3rd Camera) | - | F/2.2 | |
| Field of View (3rd Camera) | - | 110 degree(s) | |
| Pixel Size (3rd Camera) | - | 1 μm | |
| Camera Features (3rd Camera) | - | Field of view, distortion correction |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 12 Megapixel | Microsoft Surface Duo 2 has better front camera resolution than Google Pixel 4a. |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Field of View (Front) | 84 degree(s) | - | |
| Pixel Size (Front) | 1.12 μm | 1 μm | Google Pixel 4a has larger front camera pixel size than Microsoft Surface Duo 2. |
| Focus Adjustment | Focus free | - | |
| Video Resolutions (Front) | 864 x 480, 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | - |
| BATTERY AND CHARGING | Google Pixel 4a | Microsoft Surface Duo 2 |
|---|
| Battery Capacity (Battery Size) | 3140 mAh | 4449 mAh | Microsoft Surface Duo 2 has larger battery capacity than Google Pixel 4a. |
|---|---|---|---|
| Fast Charging Technology | Power Delivery 2.0 | - | Google Pixel 4a has fast charging technology. |
| Talk Time | - | 1680 minutes | |
| Run Time Details | - | Talk: up to 1680 min Playback (local video): up to 15.5 hrs |
| CELLULAR | Google Pixel 4a | Microsoft Surface Duo 2 |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Microsoft Surface Duo 2 has more advanced generation mobile network. |
| Operating System | Android 10 | Android 11 | |
| Intelligent Assistant | Google Assistant | Google Assistant | |
| Navigation | GPS, GLONASS, Galileo, QZSS | GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | Google Pixel 4a | Microsoft Surface Duo 2 |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, LTE | GPRS, FDD-LTE, TDD-LTE, Gigabit LTE, LAA, 5G NR FR1 | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8 | Band 1, Band 2, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 1900, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 14, Band 17, Band 18, Band 20, Band 25, Band 26, Band 28, Band 29, Band 30, Band 38, Band 39, Band 40, Band 41, Band 66, Band 71 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 14, Band 19, Band 20, Band 25, Band 26, Band 28, Band 29, Band 30, Band 38, Band 39, Band 40, Band 41, Band 42, Band 46, Band 48, Band 66, Band 71 | |
| 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 700 PS, FDD 700b, FDD 800 lower, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 700d, FDD 2300 WCS, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3, FDD 600 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700 PS, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 700d, FDD 2300 WCS, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500, TDD 5150, TDD 3600, FDD 1700 - 2110 AWS-3, FDD 600 | |
| 5G NR Band | - | N1, n2, n3, n5, n7, n20, n28, n38, n41, n66, n71, n77, n78, n79, n25 | |
| 5G NR Frequency | - | FDD 2100, FDD 1900PCS, FDD 1800, FDD 850, FDD 2600, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, FDD 600, TDD TD 3700, TDD TD 3500, TDD TD 4500, FDD 1900 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11ax | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.1 | |
| Bluetooth Profiles | A2DP | - | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Google Pixel 4a | Microsoft Surface Duo 2 |
|---|
| Supported Digital Audio Standards | AAC, apt-X, LDAC, apt-X HD | WAV, AAC, AMR, MP3, FLAC, OGG, MIDI, M4A, apt-X, IMY, RTX, OTA, MID, TWS, RTTL | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, FLV, AVI, MOV, MPEG-4, WMV, ASF, 3GP, H.264, TS, M2TS, WebM, HEVC, 3G2, HEIF, H.265 HEVC, HEIC | |
| Sound Enhancements | - | Qualcomm aptX HD audio, Qualcomm aptX Classic |
| FEATURES | Google Pixel 4a | Microsoft Surface Duo 2 |
|---|
| 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 | Accelerometer, ambient light sensor, proximity sensor, barometer, magnetometer, gyro sensor | Hall sensor, Time of Flight (ToF), dual accelerometers, dual gyroscope, dual magnetometer, dual ambient light sensor, dual proximity sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader (side) | |
| Additional Phone Features | Dual microphones, MIMO technology, Android Sensor Hub, Noise suppression, ARCore, Google Lens, Titan M Security Module, Pixel Imprint sensor, 3 years of security and OS updates, Google Cast | MIMO technology, Fast Charging, dual battery, Full Duplex communication, dual microphones with AI-based noise suppression and acoustic echo cancellation |
| OTHERS | Google Pixel 4a | Microsoft Surface Duo 2 |
|---|
| Included Accessories | SIM card removal tool, Quick switch adapter, 18W USB-C power adapter, USB-C to USB-C cable (1 m) | SIM card removal tool, USB-C headset, Surface Duo 2 USB-C cable | |
|---|---|---|---|
| Compliant Standards | HAC (Hearing Aid Compatible) | HEARING AID M4/T3 |
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