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OPPO A40M 16.9 cm (6.67") Dual SIM Android 14 4G USB Type-C 8 GB 256 GB 5100 mAh White OPPO A40M 16.9 cm (6.67") Dual SIM Android 14 4G USB Type-C 8 GB 256 GB 5100 mAh White
OPPO A40M 16.9 cm (6.67") Dual SIM Android 14 4G USB Type-C 8 GB 256 GB 5100 mAh White

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OPPO

OPPO A40M 16.9 cm (6.67") Dual SIM Android 14 4G USB Type-C 8 GB 256 GB 5100 mAh White

90 Hz display, 5100 mAh battery and 45 W charging in 256 GB

Manufacturer reference A40M

Energy class View the energy label (PDF)
69 /100 Its best score: the best battery life, rated "good" on its category’s scale.
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1 merchant

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What the OPPO A40M 16.9 cm (6.67") Dual SIM Android 14 4G USB Type-C 8 GB 256 GB 5100 mAh White is worth

The OPPO A40M is an Android 14 smartphone running ColorOS 14.0, featuring a 16.9 cm (6.67 inch) display at 1604 x 720 pixels with a 90 Hz refresh rate and a maximum outdoor brightness of 1000 cd/m². It runs on a Snapdragon 6s Gen 1 processor at 2.2 GHz, with 8 GB of RAM and 256 GB of storage expandable via MicroSD up to 1 TB.

Its 5100 mAh Lithium battery, paired with 45 W SuperVOOC fast charging, is rated for 1400 cycles and 3002 minutes of battery life per cycle. The product carries an energy efficiency class B, a repeated free fall reliability class A and a repairability index B, with IP54 certification against dust and water splashes.

For photography, it offers a single 50 MP rear camera with electronic image stabilization and night mode, plus a 5 MP front camera. Connectivity includes 4G dual NanoSIM, Wi-Fi 5 (802.11ac), Bluetooth 5.3, GPS, contactless payment and a USB Type-C port.

This model suits daily use where battery life, durability (drop and water resistance) and smooth 90 Hz display are valued, in a compact 186 g format.

What the spec sheet says

  • 16.9 cm (6.67") 1604 x 720 pixels Panda Glass
  • Snapdragon 6s Gen 1 2.2 GHz
  • 8 GB 256 GB MicroSD (TransFlash) 1 TB
  • 4G Dual SIM NanoSIM
  • 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) Bluetooth 5.3 Near Field Communication (NFC)
  • Single camera 50 MP
  • Lithium 5100 mAh
  • Android 14 ColorOS 14.0

Its scores, criterion by criterion

Scores out of 100, calculated from the datasheet and compared with the market. The full method is public.

Battery life Good

5,100 mAh · category median: 4,500 mAh

Camera Good

50 MP · category median: 50 MP

Power Adequate

8 GB · category median: 8 GB

Screen Good

6.7 " · category median: 6.7 "

Storage Limited

256 GB · category median: 384 GB

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Documents

What the manufacturer publishes about this model. Each document opens in a new tab.

EU Energy Label PDF 488.6 KB User manual PDF 1.8 MB

Specifications

Display 11
Display diagonal 16.9 cm (6.67")
Display resolution 1604 x 720 pixels
Screen to body ratio 89.9%
Panel type LCD
Display glass type Panda Glass
Display number of colours 16.7 million colours
Colour depth 8 bit
Maximum refresh rate 90 Hz
Touch response rate 180 Hz
Maximum display brightness (Outdoor) 1000 cd/m²
Pixel density 264 ppi
Processor 4
Processor family Snapdragon
Processor model 6s Gen 1
Processor frequency 2.2 GHz
Processor cores 8
Storage 6
RAM capacity 8 GB
Internal storage capacity 256 GB
Compatible memory cards MicroSD (TransFlash)
Virtual RAM (max) 8 GB
RAM type LPDDR4X
Maximum memory card size 1 TB
Camera 17
Rear camera resolution (numeric) 50 MP
Front camera type Single camera
Front camera resolution (numeric) 5 MP
Rear camera flash Yes
Rear camera type Single camera
Front camera flash Yes
Auto focus Yes
3D depth rear camera Yes
3D depth front camera Yes
Time lapse mode Yes
Image stabilizer Yes
Image stabilizer type Electronic Image Stabilization (EIS)
Night mode Yes
Panorama Yes
Portrait mode Yes
Macro photography Yes
AI scene recognition Yes
Network 14
SIM card capability Dual SIM
Mobile network generation 4G
SIM card type NanoSIM
3G standards HSDPA, HSUPA
4G standard LTE
5G standard Not supported
Top Wi-Fi standard Wi-Fi 5 (802.11ac)
Bluetooth Yes
Wi-Fi Yes
Wi-Fi standards 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Bluetooth version 5.3
Bluetooth Low Energy (BLE) Yes
Frequency band Quad-band
Near Field Communication (NFC) Yes
Ports & interfaces 3
USB port Yes
USB connector type USB Type-C
USB version 2.0
Navigation 2
Position location Yes
GPS (satellite) Yes
Design 3
Form factor Bar
Product colour White
Colour name Starlight White
Performance 8
Video call Yes
Fast charging Yes
Fast charging technology SuperVOOC
Fingerprint reader Yes
Face recognition Yes
Speakerphone Yes
Voice commands Yes
Vibrating alert Yes
Software 3
Platform Android
Operating system installed Android 14
User interface (UI) ColorOS 14.0
Battery 4
Battery endurance in cycles 1400
Battery capacity 5100 mAh
Battery technology Lithium
Battery weight 69.2 g
Sensors 1
Ambient light sensor Yes
Power 2
USB Type-C charging port Yes
USB Type-C required charging power (max) 45 W
Endurance 6
Energy efficiency class B
Battery endurance per cycle 3002 min
Repeated free fall reliability class A
Repairability class B
International Protection (IP) code IP54
Energy efficiency scale A to G
Weight & dimensions 4
Weight 186 g
Width 76 mm
Depth 7.68 mm
Height 165.7 mm
Packaging data 1
Package weight 400 g
Packaging content 6
AC adapter included No
Quick start guide Yes
Screen protector Yes
Warranty card Yes
Cables included USB Type-C
SIM card ejector pin Yes
Certificates 1
Digital Living Network Alliance (DLNA) certified Yes
Other features 3
Ringer type Polyphonic
Warranty period 2 year(s)
Lithium weight per battery 2.22 g

Who this model suits

It’s for you if

Your first criterion is the battery life: it happens to be its best score.
You want a good score on the camera, above its category average.
You prefer a model tracked across several merchants, to buy at the right time.

Skip it if

Its lowest score is on the storage: skip it if that is decisive for you.

Frequently asked questions

Answers drawn from this model’s datasheet.

The smartphone has an IP54 rating, protecting it against water splashes and dust.

The 5100 mAh battery supports SuperVOOC fast charging up to 45 W via the USB Type-C port.

Yes, a MicroSD (TransFlash) card can be added to expand storage up to 1 TB.

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