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Tecno Spark Go vs Vivo Y21d

What Spark Go does better (8) and where Y21d wins (4) — every spec side by side.

Tecno Spark Go
Tecno · 2025Spark Go
6.3Score
8 advantages≈ $110
vs
Vivo Y21d
Vivo · 2025Y21d
6.8Score
4 advantages≈ $110
Higher score
6.1Display5.4
4.1Camera4.1
7.0Battery8.4
4.5Features5.4
Dimensions

Size comparison

Spark GoY21d
77.9 × 167.7877 × 166.18.4
Spark GoY21dDifference
Height167.7 mm166.1 mm+1.6 mm
Width77.9 mm77 mm+0.9 mm
Thickness8 mm8.4 mm−0.4 mm
Weight194 g209 g−15 g

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

Why is Spark Go better than Y21d?

  1. 5GYes · Y21d: No
  2. Refresh rate120 Hz vs 90 Hz+33%
  3. CPU frequency2.5 GHz vs 1.8 GHz+39%
  4. Process6 nm vs 12 nm2×
  5. 3.5 mm headphone jackYes · Y21d: No
  6. Weight194 g vs 209 g+8%
  7. Thickness8 mm vs 8.4 mm+5%
  8. Bluetooth5.4 vs 5.2+4%

Why is Y21d better than Spark Go?

  1. Wired charging18 W vs 44 W2.4×
  2. Water resistance (IPx)IPx4 vs IPx82×
  3. Stereo speakersNo · Spark Go: Yes
  4. Battery capacity6,000 mAh vs 6,500 mAh+8%
Specifications

Side by side

Tecno Spark GoTecno Spark Go≈ $1106.3
Vivo Y21dVivo Y21d≈ $1106.8
Design
Weight194 g209 g
Thickness8 mm8.4 mm
Height167.7 mm166.1 mm
Width77.9 mm77 mm
FramePlasticPlastic
BackPlasticPlastic
Ingress protectionIP64IP68
Water resistance (IPx)IPx4IPx8
Glass protection—Ion strengthened glass
ColoursSky Blue, Ink Black, Turquoise GreenLavender Purple, Black
Display
Screen size6.8″6.7″
PanelIPS LCDIPS LCD
OLED panelNoNo
Resolution (width)720 px720 px
Resolution (height)1,600 px1,608 px
Pixel density260 ppi264 ppi
Refresh rate120 Hz90 Hz
Peak brightness—1,000 nits
Screen-to-body ratio84.2%84%
Performance
ChipsetMediatek Dimensity 6400Unisoc T7225
Chip makerMediaTekUnisoc
Process6 nm12 nm
CPU cores88
CPU frequency2.5 GHz1.8 GHz
GPUMali-G57 MC2Mali-G52 MP1
AnTuTu score633,777—
Geekbench 6 (multi-core)1,796—
Memory
RAM8 GB8 GB
Storage (max)256 GB256 GB
Storage (base)128 GB128 GB
Storage type—eMMC 5.1
Memory card slotYesYes
Camera
Main camera50 MP50 MP
Main camera aperture—f/1.8
Rear cameras11
Optical stabilisationNoNo
Ultra-wide cameraNoNo
Telephoto cameraNoNo
Max video1080p1080p
Selfie camera5 MP5 MP
4K selfie videoNoNo
Battery
Battery capacity6,000 mAh6,500 mAh
Battery typeLi-PoSi/C
Wired charging18 W44 W
Charged in 30 min—38%
Wireless chargingNoNo
Connectivity
5GYesNo
eSIMNoNo
Dual SIMYesYes
Wi-Fi standardWi-Fi 5Wi-Fi 5
Bluetooth5.45.2
NFCNoNo
USBUSB Type-CUSB Type-C 2.0
USB version22
Infrared portYes—
Satellite navigationGLONASS, GALILEOGLONASS, GALILEO, BDS, QZSS
Features
Stereo speakersNoYes
3.5 mm headphone jackYesNo
Fingerprint sensorSideSide
SensorsFingerprint (side-mounted), accelerometer, proximity, compassFingerprint (side-mounted), accelerometer, proximity, compass
Software
OS at launchAndroid 15Android 15
PlatformAndroidAndroid
InterfaceHIOS 15Funtouch 15
EU label
Energy class—A
To compare: 0up to 4 models
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