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OPPO A40 16.9 cm (6.67") Dual SIM Android 14 4G USB Type-C 4 GB 128 GB 5100 mAh Black OPPO A40 16.9 cm (6.67") Dual SIM Android 14 4G USB Type-C 4 GB 128 GB 5100 mAh Black
OPPO A40 16.9 cm (6.67") Dual SIM Android 14 4G USB Type-C 4 GB 128 GB 5100 mAh Black

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OPPO

OPPO A40 16.9 cm (6.67") Dual SIM Android 14 4G USB Type-C 4 GB 128 GB 5100 mAh Black

5100 mAh battery, 90 Hz display and 45 W fast charging, 128 GB

Manufacturer reference A40

Energy class View the energy label (PDF)
62 /100 Its best score: the best battery life, rated "good" on its category’s scale.
See the price on Amazon This merchant’s price is not collected automatically: we would rather show none at all than a figure we could not date.
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1 merchant

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What the OPPO A40 16.9 cm (6.67") Dual SIM Android 14 4G USB Type-C 4 GB 128 GB 5100 mAh Black is worth

The OPPO A40 is an Android 14 smartphone running ColorOS 14.0, featuring a 16.9 cm (6.67 inch) display at 1604 x 720 pixels, protected by Panda Glass. It runs on a Snapdragon 6s Gen 1 processor with 8 cores, paired with 4 GB of RAM and 128 GB of storage expandable via MicroSD up to 1 TB.

The screen offers a 90 Hz refresh rate, a maximum brightness of 1000 cd/m² and a screen to body ratio of 89.9%. The 5100 mAh battery, rated for 1400 cycles, charges via USB Type-C at up to 45 W. The device holds an energy efficiency class of B, a repeated free fall reliability class of A and a repairability index of B, with IP54 certification.

The single 50 MP rear camera is paired with a 5 MP front camera, both equipped with flash and 3D depth functionality. The phone supports 4G connectivity with dual NanoSIM, Wi-Fi 6, Bluetooth 5.3 and contactless payment.

These specifications suit everyday use requiring solid battery life and fast charging, with expandable storage for users handling large amounts of photos, videos or applications.

What the spec sheet says

  • 16.9 cm (6.67") 1604 x 720 pixels Panda Glass
  • Snapdragon 6s Gen 1
  • 4 GB 128 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), Wi-Fi 6 (802.11ax) 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

Screen Good

6.7 " · category median: 6.7 "

Storage Limited

128 GB · category median: 384 GB

Power Low

4 GB · category median: 8 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

Specifications

Display 13
Display diagonal 16.9 cm (6.67")
Display resolution 1604 x 720 pixels
Screen shape Flat
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
NTSC coverage (typical) 83%
Processor 4
Processor family Snapdragon
Processor model 6s Gen 1
Processor cores 8
Processor boost frequency 2.2 GHz
Storage 6
RAM capacity 4 GB
Internal storage capacity 128 GB
Compatible memory cards MicroSD (TransFlash)
Virtual RAM (max) 4 GB
RAM type LPDDR4X
Maximum memory card size 1 TB
Camera 23
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
Rear camera aperture number 1.8
Rear camera field of view (FOV) angle 76°
Rear camera lens elements 5-element lens
Front camera lens elements 3-element lens
Front camera aperture number 2.2
Front camera field of view (FOV) angle 78°
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 13
SIM card capability Dual SIM
Mobile network generation 4G
SIM card type NanoSIM
3G standards HSDPA, HSUPA
4G standard LTE
5G standard Not supported
Bluetooth Yes
Wi-Fi Yes
Wi-Fi standards 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax)
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 Black
Colour name Sparkle Black
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 power: skip it if that is decisive for you.

Frequently asked questions

Answers drawn from this model’s datasheet.

It has an IP54 certification, protecting it against water splashes and dust, but it is not designed for immersion.

The 5100 mAh battery supports 45 W fast charging via SuperVOOC technology and a USB Type-C port, with no power adapter included.

Yes, the smartphone has 128 GB of internal storage expandable via a MicroSD (TransFlash) card up to 1 TB.

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