Realme C75x
#1689
Tecno Spark 40
#3267Category Breakdown
Realme C75x
Tecno Spark 40
Performance
76.875.7
Camera
81.686.1
Display
90.377.3
Battery
89.393.5
Build
83.135.2
Overall
84.273.6
Summary
- The Realme C75x and Tecno Spark 40 both feature a 6.67-inch IPS LCD display with a 120Hz refresh rate, but the C75x has a slightly higher resolution of 720 x 1604 pixels compared to the Spark 40's 720 x 1600 pixels.
- In terms of performance, both devices utilize the Mediatek Helio G81 chipset, but the Spark 40 offers additional options with the Helio G91 for the NFC model.
- The C75x has a 50 MP rear camera with 1080p video recording, while the Spark 40 also features a 50 MP rear camera but supports higher 1440p video recording and has an 8 MP selfie camera compared to the C75x's 5 MP.
- The C75x houses a larger 5600 mAh battery, whereas the Spark 40 has a 5200 mAh battery, both supporting 45W charging.
- Software-wise, the C75x runs on Android 15 with Realme UI 6.0, while the Spark 40 operates on Android 15 with HIOS 15, and the Spark 40 includes stereo speakers and a headphone jack, which the C75x lacks.
Side-by-side Specification Comparison
Realme C75x
Tecno Spark 40
General
Release Date
2025, March 07
2025, July 02
Announced
2025, March 07
2025, July 02
Description
N/A
N/A
Display
Size
6.67"
6.67"
Type
IPS LCD, 120Hz, 500 nits (typ), 625 nits (HBM)
IPS LCD, 120Hz
Resolution
720 x 1604 pixels, 20:9 ratio (~264 ppi density)
720 x 1600 pixels, 20:9 ratio (~263 ppi density)
PPI
720
720
Refresh Rate
120Hz
120Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
ArmorShell glass
N/A
Performance
Chipset
Mediatek Helio G81 Ultra (12 nm)
Mediatek Helio G81 (12 nm)Mediatek Helio G91 (12 nm) - NFC model
CPU
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU
Mali-G52 MC2
Mali-G52 MC2
Memory
128GB 6GB RAM, 128GB 8GB RAM
128GB 4GB RAM, 128GB 6GB RAM, 256GB 4GB RAM, 256GB 8GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC
Camera
Main Camera
50 MP
50 MP
Main Camera Details
50 MP, f/1.8, (wide), 1/2.88", PDAF
50 MP, (wide), PDAFAuxiliary lens
Front Camera
5 MP
8 MP
Front Camera Details
5 MP, f/2.2, (wide), 1/5"
8 MP, (wide)
Video Recording
1080p@30fps
1440p@30fps, 1080p@30fps
Selfie Video
1080p@30fps
1080p@30fps
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
5600 mAh
5200 mAh
Battery Details
5600 mAh
5200 mAh
Charging Details
45W wired, 100% in 90 min
45W wired, 55 min to 100%
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
165.7 x 76.2 x 8 mm (6.52 x 3.00 x 0.31 in)
165.6 x 77 x 7.7 mm (6.52 x 3.03 x 0.30 in)
Weight
196 g
N/A
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
Coral Pink, Oceanic Blue
Ink Black, Titanium Grey, Veil White, Mirage Blue
Foldable
✗
✗
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA, LTE
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Yes
Bluetooth
5.0, A2DP, LE
Yes
NFC
✗
✓
USB
USB Type-C 2.0
USB Type-C
IR Blaster
✗
✗
Headphone Jack
✗
✓
Radio
✗
✗
Positioning
GPS, GALILEO, GLONASS, QZSS, BDS
GPS
Software
Operating System
Android 15, Realme UI 6.0
Android 15, HIOS 15
OS Version
Android 15, Realme UI 6.0
Android 15, HIOS 15
Security
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (side-mounted), accelerometer, proximity, compass
Fingerprint (side-mounted); unspecified sensors
Audio
Stereo Speakers
✗
✓
Loudspeaker
Yes
Yes, with stereo speakers
Audio Jack
No
Yes