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Motorola Edge S30 vs Xiaomi Redmi K40

What Edge S30 does better (6) and where Redmi K40 wins (8) — every spec side by side.

Motorola Edge S30
Motorola · 2021Edge S30
7.5Score
6 advantages≈ $300
vs
Xiaomi Redmi K40
Xiaomi · 2021Redmi K40
7.8Score
8 advantages≈ $300
Higher score
7.6Display7.9
7.3Camera6.7
6.0Battery4.2
5.8Features8.7
Dimensions

Size comparison

Edge S30Redmi K40
75.5 × 168.18.976.4 × 163.77.8
Edge S30Redmi K40Difference
Height168.1 mm163.7 mm+4.4 mm
Width75.5 mm76.4 mm−0.9 mm
Thickness8.9 mm7.8 mm+1.1 mm
Weight202 g196 g+6 g

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

Why is Edge S30 better than Redmi K40?

  1. Main camera108 MP vs 48 MP2.2×
  2. Battery capacity5,000 mAh vs 4,520 mAh+11%
  3. Refresh rate144 Hz vs 120 Hz+20%
  4. USB version3.1 vs 2+55%
  5. Process5 nm vs 7 nm+40%
  6. Wi-Fi standardWi-Fi 6E vs Wi-Fi 6+8%

Why is Redmi K40 better than Edge S30?

  1. OLED panelNo · Edge S30: Yes
  2. NFCNo · Edge S30: Yes
  3. Stereo speakersNo · Edge S30: Yes
  4. CPU frequency2.99 GHz vs 3.2 GHz+7%
  5. Weight202 g vs 196 g+3%
  6. Selfie camera16 MP vs 20 MP+25%
  7. Thickness8.9 mm vs 7.8 mm+14%
  8. Main camera aperturef/1.9 vs f/1.8+6%
Specifications

Side by side

Xiaomi Redmi K40Xiaomi Redmi K40≈ $3007.8
Design
Weight202 g196 g
Thickness8.9 mm7.8 mm
Height168.1 mm163.7 mm
Width75.5 mm76.4 mm
FramePlastic—
BackPlastic—
Glass protection—Corning Gorilla Glass 5
ColoursGlacier Blue, Phantom BlackBlack, White, Aurora
Display
Screen size6.8″6.7″
PanelLCDSuper AMOLED
OLED panelNoYes
Resolution (width)1,080 px1,080 px
Resolution (height)2,460 px2,400 px
Pixel density395 ppi395 ppi
Refresh rate144 Hz120 Hz
Peak brightness—1,300 nits
Screen-to-body ratio86.5%85.9%
HDRYesYes
Performance
ChipsetQualcomm SM8350 Snapdragon 888+ 5GQualcomm SM8250-AC Snapdragon 870 5G
Chip makerQualcommQualcomm
Process5 nm7 nm
CPU cores88
CPU frequency2.99 GHz3.2 GHz
GPUAdreno 660Adreno 650
Memory
RAM12 GB12 GB
Storage (max)256 GB256 GB
Storage (base)128 GB128 GB
Storage typeUFS 3.1UFS 3.1
Memory card slotNoNo
Camera
Main camera108 MP48 MP
Main camera aperturef/1.9f/1.8
Main sensor size1/1.52"1/2.0"
Rear cameras22
Optical stabilisationNoNo
Ultra-wide cameraYesYes
Telephoto cameraNoNo
Max video4K4K
4K video frame rate30 fps30 fps
Selfie camera16 MP20 MP
4K selfie videoNoNo
Battery
Battery capacity5,000 mAh4,520 mAh
Battery typeLi-PoLi-Po
Wired charging33 W33 W
Charged in 30 min—58%
Wireless chargingNoNo
Connectivity
5GYesYes
eSIMNoNo
Dual SIMYesYes
Wi-Fi standardWi-Fi 6EWi-Fi 6
Bluetooth5.25.1
NFCNoYes
USBUSB Type-C 3.1USB Type-C 2.0
USB version3.12
Dual-band GPS—Yes
Satellite navigationGLONASS, GALILEO, BDSGLONASS, GALILEO, BDS, QZSS, NavIC
Features
Stereo speakersNoYes
3.5 mm headphone jackNoNo
Fingerprint sensorSideSide
SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, compassFingerprint (side-mounted), accelerometer, gyro, proximity, compass
Software
OS at launchAndroid 11Android 11
PlatformAndroidAndroid
Interface—MIUI 12
To compare: 0up to 4 models
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