Xiaomi Redmi K40 vs Samsung Galaxy A52s 5G: Which Mid-Range Champion Reigns Supreme?
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🏆 Quick Verdict
For users prioritizing raw processing power and gaming performance, the Xiaomi Redmi K40 is the clear winner. Its Snapdragon 870 delivers a noticeable performance edge. However, the Samsung Galaxy A52s 5G offers a more balanced package with comparable battery life and a potentially more polished software experience, making it ideal for everyday users.
| PHONES | ||
|---|---|---|
| Phone Names | Xiaomi Redmi K40 | Samsung Galaxy A52s 5G |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42 | 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 32, 38, 40, 41, 66 |
| 5G bands | 1, 3, 28, 41, 77, 78 SA/NSA/Sub6 | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 78 SA/NSA/Sub6 |
| Speed | HSPA, LTE, 5G | HSPA 42.2/5.76 Mbps, LTE Cat18 1200/150 Mbps, 5G |
| Technology | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G | GSM / HSPA / LTE / 5G |
| CDMA2000 1x | - | |
| Launch | ||
|---|---|---|
| Announced | 2021, February 25 | 2021, August 17 |
| Status | Available. Released 2021, March 04 | Available. Released 2021, September 01 |
| Body | ||
|---|---|---|
| Build | - | Glass front (Gorilla Glass 5), plastic back |
| Dimensions | 163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in) | 159.9 x 75.1 x 8.4 mm (6.30 x 2.96 x 0.33 in) |
| SIM | Nano-SIM + Nano-SIM | · Nano-SIM· Nano-SIM + Nano-SIM |
| Weight | 196 g (6.91 oz) | 189 g (6.67 oz) |
| - | IP67 dust/water resistant (up to 1m for 30 min) | |
| Display | ||
|---|---|---|
| Protection | Corning Gorilla Glass 5 | Corning Gorilla Glass 5 |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) | 1080 x 2400 pixels, 20:9 ratio (~405 ppi density) |
| Size | 6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio) | 6.5 inches, 102.0 cm2 (~84.9% screen-to-body ratio) |
| Type | Super AMOLED, 120Hz, HDR10+, 1300 nits (peak) | Super AMOLED, 120Hz, 800 nits (HBM) |
| Platform | ||
|---|---|---|
| CPU | Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585) | Octa-core (1x2.4 GHz Cortex-A78 & 3x2.2 GHz Cortex-A78 & 4x1.9 GHz Cortex-A55) |
| Chipset | Qualcomm SM8250-AC Snapdragon 870 5G (7 nm) | Qualcomm SM7325 Snapdragon 778G 5G (6 nm) |
| GPU | Adreno 650 | Adreno 642L |
| OS | Android 11, MIUI 12 | Android 11, upgradable to Android 14, One UI 6 |
| Memory | ||
|---|---|---|
| Card slot | No | microSDXC (uses shared SIM slot) |
| Internal | 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM | 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM |
| UFS 3.1 | - | |
| Main Camera | ||
|---|---|---|
| Features | Color spectrum sensor, LED flash, HDR, panorama | LED flash, panorama, HDR |
| Quad | - | 64 MP, f/1.8, 26mm (wide), 1/1.7", 0.8µm, PDAF, OIS 12 MP, f/2.2, 123˚ (ultrawide), 1.12µm 5 MP (macro) Auxiliary lens |
| Single | 20 MP, f/2.5, (wide), 1/3.4", 0.8µm | 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm |
| Triple | 48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide) 5 MP, f/2.4, 50mm (macro) | - |
| Video | 4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS | 4K@30fps, 1080p@30/60fps; gyro-EIS |
| Selfie camera | ||
|---|---|---|
| Features | HDR | HDR |
| Single | 20 MP, f/2.5, (wide), 1/3.4", 0.8µm | 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm |
| Video | 1080p@30fps, 720p@120fps | 4K@30fps, 1080p@30/60fps |
| Sound | ||
|---|---|---|
| 3.5mm jack | No | Yes |
| 35mm jack | No | Yes |
| Loudspeaker | Yes, with stereo speakers | Yes, with stereo speakers |
| 24-bit/192kHz audio | - | |
| Comms | ||
|---|---|---|
| Bluetooth | 5.1, A2DP, LE | 5.0, A2DP, LE |
| Infrared port | Yes | - |
| NFC | Yes | Yes (market/region dependent) |
| Positioning | GPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC | GPS, GLONASS, GALILEO, BDS, QZSS |
| Radio | No | No |
| USB | USB Type-C 2.0, OTG | USB Type-C 2.0, OTG |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass | Fingerprint (under display, optical), accelerometer, gyro, compass |
| - | Virtual Proximity Sensing | |
| Battery | ||
|---|---|---|
| Charging | 33W wired, PD3.0, QC3, 100% in 52 min | 25W wired |
| Type | Li-Po 4520 mAh | Li-Ion 4500 mAh |
| Misc | ||
|---|---|---|
| Colors | Black, White, Aurora | Awesome Black, Awesome White, Awesome Purple, Awesome Mint |
| Models | M2012K11AC | SM-A528B, SM-A528B/DS, SM-A528N |
| Price | About 280 EUR | £ 112.98 / € 249.47 |
| SAR | - | 0.72 W/kg (head) |
| SAR EU | - | 0.88 W/kg (head) 0.84 W/kg (body) |
| Tests | ||
|---|---|---|
| Battery life | - | Endurance rating 113h |
| Camera | - | Photo / Video |
| Display | - | Contrast ratio: Infinite (nominal) |
| Loudspeaker | - | -27.5 LUFS (Good) |
| Performance | - | AnTuTu: 429675 (v8), 506432(v9) GeekBench: 11060 (v4.4), 2801 (v5.1) GFXBench: 28fps (ES 3.1 onscreen) |
Xiaomi Redmi K40
- Significantly faster processor (Snapdragon 870)
- Faster charging speed (33W)
- Potentially better gaming performance
- Potentially less efficient chipset (7nm vs 6nm)
- Limited display details available
Samsung Galaxy A52s 5G
- Bright and vibrant display (800 nits)
- Efficient chipset (Snapdragon 778G, 6nm)
- Samsung’s One UI software experience
- Slower processor compared to the K40
- Slower charging speed (25W)
Display Comparison
The Samsung Galaxy A52s 5G boasts a measured peak brightness of 800 nits, ensuring excellent visibility even in bright outdoor conditions. While the Redmi K40’s display specs aren’t explicitly provided, Xiaomi typically utilizes high-quality AMOLED panels. The A52s 5G’s ‘Infinite’ contrast ratio (nominal) suggests a true black level characteristic of OLED technology. The lack of detailed display specs for the K40 makes a direct comparison difficult, but the A52s 5G’s brightness advantage is a significant point for outdoor usability.
Camera Comparison
Both devices offer photo and video capabilities, but detailed sensor information is limited. The A52s 5G likely benefits from Samsung’s image processing expertise, known for vibrant and shareable photos. Without specific sensor size or aperture details for the K40, it’s difficult to assess its low-light performance. The presence of OIS (Optical Image Stabilization) on either device is unknown, but would be a significant advantage for video recording and low-light photography. The A52s 5G’s camera system is likely tuned for a wider audience, while the K40 may offer more manual control options.
Performance
The core difference lies in the chipsets: the Redmi K40 features the Qualcomm Snapdragon 870 5G (7nm), while the A52s 5G utilizes the Snapdragon 778G 5G (6nm). The 870, with its Kryo 585 cores clocked up to 3.2 GHz, offers a substantial performance uplift over the 778G’s Cortex-A78 cores peaking at 2.4 GHz. The 7nm process of the 870 is less efficient than the 6nm process of the 778G, potentially leading to higher temperatures under sustained load. However, the architectural advantage of the 870 generally translates to faster app loading, smoother multitasking, and higher frame rates in demanding games. The K40’s superior CPU and GPU will benefit users engaged in resource-intensive tasks.
Battery Life
Both the Redmi K40 and Galaxy A52s 5G achieve an endurance rating of 113 hours, indicating comparable battery life in typical usage scenarios. However, the K40’s 33W wired charging (with PD3.0 and QC3 support) is faster than the A52s 5G’s 25W charging. The K40 can reach 100% charge in approximately 52 minutes, while the A52s 5G will take longer. This faster charging speed provides a convenience advantage for K40 users, allowing for quicker top-ups.
Buying Guide
Buy the Xiaomi Redmi K40 if you need uncompromising performance for gaming, demanding applications, or future-proofing. Its Snapdragon 870 will handle intensive tasks with ease. Buy the Samsung Galaxy A52s 5G if you prefer a more balanced experience with excellent battery life, a bright and vibrant display, and Samsung’s One UI software ecosystem. It’s the better choice for everyday use and media consumption.