Tecno Spark 40C
Xiaomi Redmi 15C 4G

Tecno Spark 40C Xiaomi Redmi 15C 4G

Common Features

  • Both products are water resistant.
  • Both products have an IP64 ingress protection rating.
  • Both products cannot be folded.
  • Both products do not have a rugged build.
  • Both products have a 720 x 1600 px resolution display.
  • Both products have a 120Hz refresh rate.
  • Both products do not support HDR10.
  • Both products do not support HDR10+.
  • Both products do not have an Always-On Display.
  • Both products do not support Dolby Vision.
  • Both products do not have a secondary screen.
  • Both products are powered by a MediaTek Helio G81 Ultra chipset.
  • Both products use a Mali G52 MP2 GPU.
  • Both products have an 8MP front camera.
  • Both products have a 1.8f wide aperture for the main camera.
  • Both products record 1080 x 30 fps video with the main camera.
  • Both products have a single flash LED.
  • Both products have built-in location privacy options.
  • Both products have clipboard warnings enabled.
  • Both products support fast charging.

Main Differences

  • Tecno Spark 40C has a thickness of 8.4 mm, while Xiaomi Redmi 15C 4G has a thickness of 8 mm.
  • Tecno Spark 40C is 77 mm wide, whereas Xiaomi Redmi 15C 4G is 79.5 mm wide.
  • Tecno Spark 40C has a height of 165.6 mm, while Xiaomi Redmi 15C 4G is taller at 171.6 mm.
  • Tecno Spark 40C has a volume of 107.11008 cm³, whereas Xiaomi Redmi 15C 4G has a larger volume of 109.1376 cm³.
  • Tecno Spark 40C has a screen size of 6.67″, while Xiaomi Redmi 15C 4G has a larger 6.9″ screen.
  • Tecno Spark 40C has a pixel density of 263 ppi, while Xiaomi Redmi 15C 4G has a pixel density of 254 ppi.
  • Tecno Spark 40C does not have branded damage-resistant glass, whereas Xiaomi Redmi 15C 4G does.
  • Tecno Spark 40C comes with 8GB of RAM, while Xiaomi Redmi 15C 4G has only 4GB of RAM.
  • Tecno Spark 40C has a 13 MP main camera, while Xiaomi Redmi 15C 4G features a 50 MP main camera.
  • Tecno Spark 40C supports 18W charging speed, while Xiaomi Redmi 15C 4G supports a faster 33W charging speed.
  • Tecno Spark 40C does not have a 3.5 mm audio jack, whereas Xiaomi Redmi 15C 4G includes a 3.5 mm audio jack.
  • Tecno Spark 40C has stereo speakers, while Xiaomi Redmi 15C 4G does not have stereo speakers.
  • Tecno Spark 40C does not have a radio, while Xiaomi Redmi 15C 4G includes a radio.
  • Tecno Spark 40C does not have NFC support, whereas Xiaomi Redmi 15C 4G does have NFC support.
Specs Comparison
Tecno Spark 40C

Tecno Spark 40C

Xiaomi Redmi 15C 4G

Xiaomi Redmi 15C 4G

Design:
water resistance Water resistant Water resistant
thickness 8.4 mm 8 mm
width 77 mm 79.5 mm
height 165.6 mm 171.6 mm
volume 107.11008 cm³ 109.1376 cm³
Ingress Protection (IP) rating IP64 IP64
has a rugged build
can be folded

Both the Tecno Spark 40C and Xiaomi Redmi 15C 4G are water resistant, with the same IP64 rating for ingress protection, meaning they offer protection against dust and splashes of water. In terms of dimensions, the Tecno Spark 40C has a thickness of 8.4 mm, slightly thicker than the Xiaomi Redmi 15C 4G, which is 8 mm thick. The width of the Spark 40C is 77 mm, while the Redmi 15C is slightly wider at 79.5 mm. The height of the Spark 40C is 165.6 mm, compared to the Redmi 15C’s 171.6 mm, making the Redmi model taller. As for their overall volume, the Tecno Spark 40C measures 107.1 cm³, while the Xiaomi Redmi 15C has a volume of 109.14 cm³, indicating the Xiaomi device is marginally larger.

Neither device features a rugged build, and neither is foldable. These aspects are identical between the two models.

Overall, the Tecno Spark 40C and Xiaomi Redmi 15C 4G share similar water resistance and IP64 ratings, but the Xiaomi model is slightly larger in terms of width, height, and volume, with a thinner design. There are no significant differences in terms of build durability or foldability between the two phones.

Display:
Display type LCD, IPS LCD, IPS
screen size 6.67" 6.9"
pixel density 263 ppi 254 ppi
resolution 720 x 1600 px 720 x 1600 px
refresh rate 120Hz 120Hz
has branded damage-resistant glass
supports HDR10
supports HDR10+
Always-On Display
supports Dolby Vision
Has a secondary screen
has a touch screen

Both the Tecno Spark 40C and Xiaomi Redmi 15C 4G feature LCD, IPS displays with a resolution of 720 x 1600 px, offering similar image clarity. The Tecno Spark 40C has a 6.67″ screen, while the Xiaomi Redmi 15C 4G comes with a larger 6.9″ display, making the Xiaomi model slightly bigger. In terms of pixel density, the Spark 40C has 263 ppi, while the Redmi 15C has 254 ppi, which is a small difference, with the Spark 40C having a marginally higher pixel density.

Both devices offer a 120Hz refresh rate, ensuring smooth scrolling and responsiveness. However, only the Xiaomi Redmi 15C has branded damage-resistant glass, while the Tecno Spark 40C does not. Neither phone supports HDR10 or HDR10+, and neither features an Always-On Display or a secondary screen. Both also support touch functionality.

Overall, the Tecno Spark 40C and Xiaomi Redmi 15C 4G have very similar display characteristics, with the main difference being the slightly larger size of the Redmi model and the inclusion of branded damage-resistant glass in the Xiaomi device.

Performance:
internal storage 256GB 256GB
RAM 8GB 4GB
Chipset (SoC) name MediaTek Helio G81 Ultra MediaTek Helio G81 Ultra
GPU name Mali G52 MP2 Mali G52 MP2
CPU speed 2 x 2 & 6 x 1.8 GHz 2 x 2 & 6 x 1.8 GHz
Geekbench 6 result (multi) 1391 1391
Geekbench 6 result (single) 420 420
Geekbench 5 result (multi) 1300 1300
Geekbench 5 result (single) 350 350
Has integrated LTE
RAM speed 1800 MHz 1800 MHz
semiconductor size 12 nm 12 nm
Supports 64-bit
DirectX version DirectX 12 DirectX 12
Has integrated graphics
OpenGL version 3.2 3.2
OpenGL ES version 3.2 3.2
Uses big.LITTLE technology
CPU threads 8 threads 8 threads
Has TrustZone
maximum memory bandwidth 13.41 GB/s 13.41 GB/s
OpenCL version 2 2
memory channels 2 2
L2 cache 0.3 MB 0.3 MB
eMMC version 5.1 5.1
maximum memory amount 8GB 8GB
GPU execution units 2 2
GPU turbo 950 MHz 950 MHz
number of transistors 5500 million 5500 million
Thermal Design Power (TDP) 5W 5W
DDR memory version 4 4
shading units 32 32
turbo clock speed 2GHz 2GHz
L3 cache 1 MB 1 MB

Both the Tecno Spark 40C and Xiaomi Redmi 15C 4G are equipped with the MediaTek Helio G81 Ultra chipset and the Mali G52 MP2 GPU. The CPU configuration on both devices is the same, with 2 cores running at 2 GHz and 6 cores running at 1.8 GHz, and both devices support big.LITTLE technology and 64-bit processing. Geekbench 6 scores for both models are identical, with a multi-core result of 1391 and a single-core score of 420. Geekbench 5 also shows matching results, with 1300 in multi-core and 350 in single-core performance.

In terms of memory, the Tecno Spark 40C has 8GB of RAM, while the Xiaomi Redmi 15C comes with only 4GB of RAM. Both devices have 256GB of internal storage, and both support a maximum memory amount of 8GB, though only the Tecno model utilizes the full RAM capacity. RAM speed is the same on both devices, at 1800 MHz.

The two phones share several other performance-related features, including integrated LTE, DirectX 12 support, integrated graphics, and OpenGL 3.2. They also both use eMMC 5.1 storage and have a similar thermal design power (TDP) of 5W. Both devices also have a GPU turbo speed of 950 MHz, 2 memory channels, and identical L2 and L3 cache sizes (0.3 MB and 1 MB, respectively). The Tecno Spark 40C and Xiaomi Redmi 15C 4G have equivalent CPU threads (8) and transistor counts (5500 million), and both phones offer the same maximum memory bandwidth of 13.41 GB/s.

Cameras:
megapixels (main camera) 13 MP 50 MP
wide aperture (main camera) 1.8f 1.8f
Has a dual-lens (or multi-lens) main camera
megapixels (front camera) 8MP 8MP
has built-in optical image stabilization
video recording (main camera) 1080 x 30 fps 1080 x 30 fps
Has a dual-tone LED flash
number of flash LEDs 1 1
has a BSI sensor
has a CMOS sensor
has continuous autofocus when recording movies
Has phase-detection autofocus for photos
supports slow-motion video recording
has a built-in HDR mode
has manual exposure
has a flash
optical zoom 0x 0x
has manual ISO
has a serial shot mode
has manual focus
has a front camera
Has laser autofocus
Shoots 360° panorama
has manual white balance
shoots raw
has touch autofocus
has manual shutter speed
can create panoramas in-camera
Has a front-facing LED flash
has a dual-lens (or multi-lens) front camera
supports HDR10 recording
supports Dolby Vision recording
has a front-facing camera under the display
Has a RGB LED flash
has 3D photo/video recording capabilities

The Tecno Spark 40C and Xiaomi Redmi 15C 4G both feature an 8MP front camera, but the main cameras differ significantly in megapixels. The Tecno Spark 40C comes with a 13 MP main camera, while the Xiaomi Redmi 15C has a much higher 50 MP main camera. Both phones have a wide aperture of f/1.8 on their main cameras, and neither has optical image stabilization (OIS) or a dual-lens system for the main camera.

Both devices support 1080p video recording at 30 fps on the main camera, and both have phase-detection autofocus (PDAF) for photos, continuous autofocus during video recording, and touch autofocus. They also support slow-motion video recording, have manual exposure, and can create panoramas in-camera. Neither supports HDR10 or Dolby Vision recording, and both lack a front-facing LED flash and a front-facing camera under the display.

In terms of additional camera features, both phones have the same capabilities, including manual ISO, serial shot mode, manual focus, and manual white balance. Neither phone shoots in raw format, and neither has laser autofocus, 360° panorama shooting, or RGB LED flash. Despite the differences in the main camera’s megapixel count, the overall set of features is largely similar between the two phones.

Operating system:
Android version Android 15 Android 15
has clipboard warnings
has location privacy options
has camera/microphone privacy options
has Mail Privacy Protection
has theme customization
can block app tracking
blocks cross-site tracking
has on-device machine learning
has notification permissions
has media picker
Can play games while they download
has dark mode
has Wi-Fi password sharing
has battery health check
has an extra dim mode
has focus modes
has dynamic theming
can offload apps
Has customizable notifications
has Live Text
has full-page screenshots
supports split screen
gets direct OS updates
has PiP
Can be used as a PC
Has sharing intents
has a child lock
Supports widgets
Is free and open source
Has offline voice recognition
has voice commands
Tracks the current position of a mobile device
is a multi-user system
has Quick Start

Both the Tecno Spark 40C and Xiaomi Redmi 15C 4G run Android 15 and offer very similar operating system features. Both devices include clipboard warnings, location privacy options, and camera/microphone privacy options. They also support theme customization, can block app tracking, and have on-device machine learning. Additionally, both phones feature notification permissions, a media picker, and the ability to play games while they download. Both models also include dark mode, battery health check, and an extra dim mode.

Several other features are identical between the two devices, such as customizable notifications, Live Text, full-page screenshots, split-screen support, PiP (Picture-in-Picture), sharing intents, child lock, widgets, and offline voice recognition. Both phones also allow voice commands and track the current position of a mobile device, and they support multi-user systems.

Some features are missing on both devices, including focus modes, Quick Start, Wi-Fi password sharing, and dynamic theming. Both devices do not receive direct OS updates and are not capable of being used as a PC. Finally, both phones are free and open source, offering a similar set of operating system tools and functionalities.

Battery:
battery power 6000 mAh 6000 mAh
has wireless charging
Supports fast charging
charging speed 18W 33W
has reverse wireless charging
has a removable battery
has a battery level indicator
has a rechargeable battery

Both the Tecno Spark 40C and Xiaomi Redmi 15C 4G come with a large 6000 mAh battery, ensuring long-lasting power. Neither device supports wireless charging or reverse wireless charging. Both phones feature a rechargeable battery, a battery level indicator, and do not have removable batteries.

One key difference between the two models is the charging speed. The Tecno Spark 40C supports fast charging at 18W, while the Xiaomi Redmi 15C offers faster charging at 33W. Despite having the same battery capacity, the Xiaomi model can charge more quickly.

Overall, the Tecno Spark 40C and Xiaomi Redmi 15C 4G have very similar battery specifications, with the main distinction being the faster charging speed of the Xiaomi device.

Audio:
has a socket for a 3.5 mm audio jack
has stereo speakers
has aptX
has LDAC
has aptX HD
has aptX Adaptive
has aptX Lossless
Has a radio

The Tecno Spark 40C and Xiaomi Redmi 15C 4G differ in terms of audio features. The Tecno Spark 40C does not have a 3.5 mm audio jack, but it does come with stereo speakers. In contrast, the Xiaomi Redmi 15C has a 3.5 mm audio jack, which allows for wired audio connections, but it does not feature stereo speakers.

Neither phone supports advanced Bluetooth audio codecs like aptX, LDAC, aptX HD, aptX Adaptive, or aptX Lossless. Additionally, neither device includes FM radio support in terms of broadcast radio, though the Xiaomi model does have a radio, while the Tecno Spark 40C lacks this feature.

Overall, the main differences are that the Tecno Spark 40C has stereo speakers but lacks a 3.5 mm audio jack and radio support, while the Xiaomi Redmi 15C offers a 3.5 mm audio jack and a radio, but lacks stereo speakers.

Connectivity & Features:
release date July 2025 August 2025
has 5G support
Wi-Fi version Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
SIM cards 2 SIM 2 SIM
Has USB Type-C
has NFC
download speed 300 MBits/s 300 MBits/s
upload speed 100 MBits/s 100 MBits/s
Has a fingerprint scanner
has emergency SOS via satellite
has crash detection
is DLNA-certified
supports ANT+
Has a heart rate monitor
has GPS
supports Wi-Fi
Has an infrared sensor
has an accelerometer
has a cellular module
Has a barometer
has an HDMI output
Uses 3D facial recognition
Has an iris scanner
Stylus included
supports Galileo
Has motion tracking
Has optical tracking
Has a built-in projector

Both the Tecno Spark 40C and Xiaomi Redmi 15C 4G support 2 SIM cards and have USB Type-C ports. They also offer the same Wi-Fi support, with Wi-Fi 4 (802.11n) and Wi-Fi 5 (802.11ac) compatibility, and both devices support download speeds of up to 300 MBits/s and upload speeds of up to 100 MBits/s. Additionally, both phones feature a fingerprint scanner and GPS support, including Galileo, and are equipped with an accelerometer.

The Xiaomi Redmi 15C stands out with the addition of NFC support, which the Tecno Spark 40C lacks. Both devices do not support 5G, emergency SOS via satellite, crash detection, DLNA certification, ANT+, heart rate monitoring, or infrared sensors. Neither phone includes an HDMI output, 3D facial recognition, or an iris scanner. They also do not come with a stylus, motion tracking, optical tracking, or a built-in projector.

Overall, the Tecno Spark 40C and Xiaomi Redmi 15C 4G share many connectivity features, but the Xiaomi model adds NFC support, which the Tecno device lacks.

Miscellaneous:
has a video light
Has sapphire glass display
Has a curved display
Has an e-paper display

The Tecno Spark 40C and Xiaomi Redmi 15C 4G are quite similar in terms of miscellaneous features. Both phones come with a video light, which helps illuminate videos in low-light conditions. Neither device features sapphire glass display protection, a curved display, or an e-paper display.

Both phones share identical specifications in this category, with no notable differences between them. The absence of advanced display technologies like sapphire glass or curved displays is common in this price range.

Overall, the Tecno Spark 40C and Xiaomi Redmi 15C 4G offer the same miscellaneous features, with both providing a video light but lacking other premium display technologies.

Comparison Summary

This is a specification comparison between the Tecno Spark 40C and Xiaomi Redmi 15C 4G. Both devices share a 720 x 1600 px resolution display with a 120Hz refresh rate, are water resistant with an IP64 rating, and support fast charging. However, the Tecno Spark 40C has a smaller screen size at 6.67″, compared to the 6.9″ display on the Xiaomi Redmi 15C 4G. The Tecno Spark 40C features 8GB of RAM, while the Xiaomi Redmi 15C 4G has only 4GB. Additionally, the Tecno Spark 40C has a 13 MP main camera, whereas the Xiaomi Redmi 15C 4G comes with a 50 MP main camera. The Tecno Spark 40C offers stereo speakers, while the Xiaomi Redmi 15C 4G does not, and the Xiaomi Redmi 15C 4G supports NFC, unlike the Tecno Spark 40C.