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BLU S91 vs OPPO A57e

What S91 does better (3) and where A57e wins (5) — every spec side by side.

BLU S91
BLU · 2022S91
4.2Score
3 advantages≈ $180
vs
OPPO A57e
OPPO · 2022A57e
4.9Score
5 advantages≈ $190
Higher score
3.4Display3.8
4.0Camera3.4
2.9Features3.2
Dimensions

Size comparison

S91A57e
76.3 × 164.88.975 × 163.78
S91A57eDifference
Height164.8 mm163.7 mm+1.1 mm
Width76.3 mm75 mm+1.3 mm
Thickness8.9 mm8 mm+0.9 mm
Weight202 g187 g+15 g

Drawn to the same scale from the official dimensions (front and side).

Why is S91 better than A57e?

  1. Storage (max)128 GB vs 64 GB2×
  2. Storage (base)128 GB vs 64 GB2×
  3. Selfie camera13 MP vs 8 MP+62%

Why is A57e better than S91?

  1. CPU frequency2 GHz vs 2.3 GHz+15%
  2. Weight202 g vs 187 g+8%
  3. Wi-Fi standardWi-Fi 4 vs Wi-Fi 5+25%
  4. Thickness8.9 mm vs 8 mm+11%
  5. Screen-to-body ratio81.1% vs 84.2%+4%
Specifications

Side by side

BLU S91BLU S91≈ $1804.2
OPPO A57eOPPO A57e≈ $1904.9
Design
Weight202 g187 g
Thickness8.9 mm8 mm
Height164.8 mm163.7 mm
Width76.3 mm75 mm
Frame—Plastic
Back—Plastic
Ingress protection—IP5X
Water resistance (IPx)—IPx4
ColoursBlack, GreenGlowing Black, Glowing Green
Display
Screen size6.5″6.6″
PanelIPS LCDIPS LCD
OLED panelNoNo
Resolution (width)720 px720 px
Resolution (height)1,600 px1,612 px
Pixel density270 ppi269 ppi
Refresh rate60 Hz60 Hz
Peak brightness—600 nits
Screen-to-body ratio81.1%84.2%
Performance
ChipsetMediatek MT6762G Helio G25Mediatek MT6765G Helio G35
Chip makerMediaTekMediaTek
Process12 nm12 nm
CPU cores88
CPU frequency2 GHz2.3 GHz
GPUPowerVR GE8320PowerVR GE8320
Memory
RAM4 GB4 GB
Storage (max)128 GB64 GB
Storage (base)128 GB64 GB
Storage type—eMMC 5.1
Memory card slotYesYes
Camera
Main camera13 MP13 MP
Main camera aperture—f/2.2
Main sensor size—1/3.06"
Rear cameras11
Optical stabilisationNoNo
Ultra-wide cameraNoNo
Telephoto cameraNoNo
Max video1080p1080p
Selfie camera13 MP8 MP
4K selfie videoNoNo
Battery
Battery capacity5,000 mAh5,000 mAh
Battery typeLi-PoLi-Po
Wired charging—33 W
Charged in 30 min—50%
Wireless charging—No
Connectivity
5G—No
eSIMNoNo
Dual SIMYesYes
Wi-Fi standardWi-Fi 4Wi-Fi 5
Bluetooth5—
NFCNoNo
USBUSB Type-C 2.0USB Type-C 2.0
USB version22
Features
Stereo speakersNoNo
3.5 mm headphone jackYesYes
Fingerprint sensorRearSide
SensorsFingerprint (rear-mounted), accelerometer, gyro, proximity, compassFingerprint (side-mounted), accelerometer, proximity, compass
Software
OS at launchAndroid 11Android 12
PlatformAndroidAndroid
Interface—ColorOS 12.1
To compare: 0up to 4 models
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