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General
| Name | Microsoft Lumia 540 Dual SIM | Oppo A77 |
|---|---|---|
| Launch Date | 1 Apr 2015 | 1 Jun 2022 |
| Brand | Microsoft | Oppo |
| Colors | Orange, white, black, gray, blue | Ocean Blue, Midnight Black |
| Models | - | CPH2339 |
Display
| Display Size | 5.0 Inches | 6.56 Inches |
|---|---|---|
| Display Type | IPS LCD | IPS LCD, 480 nits (typ), 600 nits (HBM) |
| Resolution | 720 x 1280 pixels | 720 x 1612 pixels |
| Refresh Rate | 60Hz | 90Hz |
| Aspect Ratio | 16:9 | 20:9 |
| Features | 64.9% (screen to body ratio), 294 ppi | 84.0% (screen to body ratio), 269 ppi |
Platform
| Operating System | Microsoft Windows Phone 8.1 with Lumia Denim | Android 12, ColorOS 12.1 |
|---|---|---|
| Processor | Snapdragon 200 (28 nm) | MediaTek Dimensity 810 (6 nm) |
| CPU | Quad-core 1.2 GHz Cortex-A7 | Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) |
| GPU | Adreno 302 | Mali-G57 MC2 |
Memory
| Ram | 1GB | 4GB, 6GB |
|---|---|---|
| Ram Type | LPDDR2 | LPDDR4x |
| Storage | 8GB | 64GB, 128GB |
| Storage Type | eMMC 4.5 | UFS 2.2 |
| SD Card Slot | Yes | Yes |
Camera
| Type | Single Camera | Dual Camera |
|---|---|---|
| Main | 8 MP, f/2.2, 28mm, 1/4.0", AF | 48 MP, f/1.7, 26mm |
| Depth | - | 2 MP, f/2.4 |
| Video | 480p@30fps | 1080p@30fps |
| Features | - | HDR |
Front Camera
| Type | Single Camera | Single Camera |
|---|---|---|
| Selfie | 5 MP | 8 MP, f/2.0, 26mm |
| Video | 480p | 1080p@30fps |
| Features | - | Panorama |
Battery
| Capacity | 2200 mAh | 5000 mAh |
|---|---|---|
| Battery Technology | Li-Ion, removable | Li-Po, non-removable |
| Charging Speed | - | 33W |
| USB Type | Micro USB, USB 2.0 | Type C, USB 2.0, OTG |
| Wireless Charging | No | No |
Network
| Sim | Dual Sim | Dual Sim |
|---|---|---|
| Sim Type | Dual SIM (Micro-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
| Technology | 3G | 5G |
| Bands | ||
Connectivity
| Wi-Fi | WiFi 2.4 | WiFi 5 |
|---|---|---|
| Bluetooth | V4.0 | V5.3 |
| NFC | No | Yes |
| GPS | Yes | Yes |
Audio
| Loudspeaker | Yes | Stereo speakers |
|---|---|---|
| Headphone Jack | Yes | Yes |
Biometric
| Fingerprint | No | Yes |
|---|---|---|
| Fingerprint Type | - | Capacitive Fingerprint Scanner |
| Fingerprint Position | - | Side-Mounted |
| Face Unlock | Not Available | 2D Face Unlock |
Body
| Dimensions | 144 x 73.7 x 8.6 mm | 163.8 x 75.1 x 8 mm |
|---|---|---|
| Weight | 152 g | 190 g |
| Frame | Plastic Frame | Plastic Frame |
| Back | Plastic Back | Plastic Back |
| IP Rating | No | IPX4 |
Others
| Sensors | Accelerometer, proximity | Accelerometer, proximity, compass |
|---|
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