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OSCAL Pilot 1 vs Tecno Spark Slim

What Pilot 1 does better (7) and where Spark Slim wins (13) — every spec side by side.

OSCAL Pilot 1
OSCAL · 2025Pilot 1
7.5Score
7 advantages≈ $180
Higher score
vs
Tecno Spark Slim
Tecno · 2025Spark Slim
7.5Score
13 advantages≈ $190
5.4Display9.8
5.9Camera5.2
8.7Battery7.8
6.7Features4.1
Dimensions

Size comparison

Pilot 1Spark Slim
85 × 185.52275.9 × 164.25.9
Pilot 1Spark SlimDifference
Height185.5 mm164.2 mm+21.3 mm
Width85 mm75.9 mm+9.1 mm
Thickness22 mm5.9 mm+16.1 mm
Weight540 g156 g+384 g

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

Why is Pilot 1 better than Spark Slim?

  1. Battery capacity15,000 mAh vs 5,160 mAh2.9×
  2. Water resistance (IPx)IPx8 vs IPx42×
  3. Stereo speakersYes · Spark Slim: No
  4. Selfie camera32 MP vs 13 MP2.5×
  5. Memory card slotYes · Spark Slim: No
  6. Dual SIMYes · Spark Slim: No
  7. Wi-Fi standardWi-Fi 5 vs Wi-Fi 4+25%

Why is Spark Slim better than Pilot 1?

  1. Weight540 g vs 156 g3.5×
  2. Peak brightness700 nits vs 4,500 nits6.4×
  3. Refresh rate90 Hz vs 144 Hz+60%
  4. OLED panelNo · Pilot 1: Yes
  5. Wired charging33 W vs 45 W+36%
  6. RAM6 GB vs 8 GB+33%
  7. Thickness22 mm vs 5.9 mm3.7×
  8. Charged in 30 min22% vs 53%2.4×
  9. Process12 nm vs 6 nm2×
  10. Pixel density395 ppi vs 440 ppi+11%
  11. CPU frequency2 GHz vs 2.2 GHz+10%
  12. Screen-to-body ratio68.1% vs 89.1%+31%
Specifications

Side by side

OSCAL Pilot 1OSCAL Pilot 1≈ $1807.5
Tecno Spark SlimTecno Spark Slim≈ $1907.5
Design
Weight540 g156 g
Thickness22 mm5.9 mm
Height185.5 mm164.2 mm
Width85 mm75.9 mm
Frame—Plastic
Back—Plastic
Ingress protectionIP68IP64
Water resistance (IPx)IPx8IPx4
Glass protectionCorning Gorilla Glass 5Corning Gorilla Glass 7i
ColoursBlack, OrangeSlim White, Cool Black
Display
Screen size6.7″6.8″
PanelIPS LCDAMOLED
OLED panelNoYes
Resolution (width)1,080 px1,224 px
Resolution (height)2,400 px2,720 px
Pixel density395 ppi440 ppi
Refresh rate90 Hz144 Hz
Peak brightness700 nits4,500 nits
Screen-to-body ratio68.1%89.1%
Performance
ChipsetMediatek Helio G81Mediatek Helio G200
Chip makerMediaTekMediaTek
Process12 nm6 nm
CPU cores88
CPU frequency2 GHz2.2 GHz
GPUMali-G52 MC2Mali-G57 MC2
AnTuTu score—591,552
Geekbench 6 (multi-core)—1,985
Memory
RAM6 GB8 GB
Storage (max)256 GB256 GB
Storage (base)256 GB256 GB
Storage typeeMMC 5.1UFS 2.2
Memory card slotYesNo
Camera
Main camera50 MP50 MP
Main camera aperturef/1.8—
Main sensor size1/2.76"—
Rear cameras11
Optical stabilisationNoNo
Ultra-wide cameraNoNo
Telephoto cameraNoNo
Max video1080p1080p
Selfie camera32 MP13 MP
4K selfie videoNoNo
Battery
Battery capacity15,000 mAh5,160 mAh
Battery type—Li-Po
Wired charging33 W45 W
Charged in 30 min22%53%
Wireless chargingNoNo
Connectivity
5GNoNo
eSIMNoNo
Dual SIMYesNo
Wi-Fi standardWi-Fi 5Wi-Fi 4
Bluetooth5.35.4
NFCYesYes
USBUSB Type-CUSB Type-C
USB version—2
Infrared port—Yes
Satellite navigationGLONASS, GALILEO, BDSGLONASS, GALILEO, BDS
Features
Stereo speakersYesNo
3.5 mm headphone jackNoNo
Fingerprint sensorSideUnder display
SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro
Software
OS at launchAndroid 14Android 15
PlatformAndroidAndroid
InterfaceDokeOS 4.0HIOS 15
EU label
Energy classA—
Battery charge cycles800—
Endurance per cycle167 h—
Repairability classC—
Drop resistance classA—
To compare: 0up to 4 models
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