The Xiaomi Redmi K40S and vivo Y52s t1 represent distinct approaches to the competitive mid-range smartphone market. The K40S aims for near-flagship performance with its Snapdragon 870, while the Y52s t1 prioritizes affordability with the Snapdragon 480. This comparison dissects their key differences to determine which device delivers the best experience for your needs.
🏆 Quick Verdict
For most users, the Xiaomi Redmi K40S is the superior choice. Its Snapdragon 870 chipset provides significantly faster performance, and the 67W charging is a game-changer. While the Y52s t1 offers a lower entry price, the K40S’s performance uplift justifies the cost for anyone prioritizing responsiveness and future-proofing.
| Network |
|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands | 1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41 | 1, 2, 3, 4, 5, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42 |
| 5G bands | 1, 28, 41, 77, 78 SA/NSA | 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA |
| Speed | HSPA, LTE, 5G | HSPA, LTE, 5G |
| Technology | GSM / CDMA / HSPA / LTE / 5G | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G |
| | CDMA 800 | CDMA2000 1x |
| Launch |
|---|
| Announced | 2021, May 03 | 2022, March 17 |
| Status | Available. Released 2021, May 03 | Available. Released 2022, March 17 |
| Body |
|---|
| Build | - | Glass front (Gorilla Glass 5), plastic back |
| Dimensions | 164.2 x 75.4 x 8.4 mm (6.46 x 2.97 x 0.33 in) | 163.2 x 76 x 7.7 mm (6.43 x 2.99 x 0.30 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Weight | 185.5 g (6.56 oz) | 195 g (6.88 oz) |
| | - | Splash resistant |
| Display |
|---|
| Protection | - | Corning Gorilla Glass 5 |
| Resolution | 1080 x 2408 pixels, 20:9 ratio (~401 ppi density) | 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) |
| Size | 6.58 inches, 104.3 cm2 (~84.2% screen-to-body ratio) | 6.67 inches, 107.4 cm2 (~86.6% screen-to-body ratio) |
| Type | IPS LCD, 90Hz, HDR10, 460 nits (typ) | AMOLED, 120Hz, HDR10+, 1300 nits (peak) |
| Platform |
|---|
| CPU | Octa-core (2x2.0 GHz Kryo 460 & 6x1.8 GHz Kryo 460) | Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585) |
| Chipset | Qualcomm SM4350 Snapdragon 480 5G (8 nm) | Qualcomm SM8250-AC Snapdragon 870 5G (7 nm) |
| GPU | Adreno 619 | Adreno 650 |
| OS | Android 11, OriginOS 1.0 | Android 12, MIUI 13 |
| Memory |
|---|
| Card slot | No | No |
| Internal | 128GB 8GB RAM, 256GB 8GB RAM | 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM |
| | UFS 2.1 | UFS 3.1 |
| Main Camera |
|---|
| Dual | 48 MP, f/1.8, 25mm (wide), 1/2.0", 0.8µm, PDAF
Auxiliary lens | - |
| Features | LED flash, HDR, panorama | Color spectrum sensor, Dual-LED dual-tone flash, HDR, panorama |
| Single | 8 MP, f/1.8, (wide) | 20 MP, (wide) |
| Triple | - | 48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF, OIS
8 MP, 119˚ (ultrawide)
2 MP (macro) |
| Video | 1080p@30fps | 4K@30fps, 1080p@30/60/120fps, 720p@960fps; gyro-EIS |
| Selfie camera |
|---|
| Features | HDR | - |
| Single | 8 MP, f/1.8, (wide) | 20 MP, (wide) |
| Video | 1080p@30fps | 1080p@30/120fps |
| Sound |
|---|
| 3.5mm jack | Yes | No |
| 35mm jack | Yes | No |
| Loudspeaker | Yes | Yes, with stereo speakers |
| | - | 24-bit/192kHz audio |
| Comms |
|---|
| Bluetooth | 5.1, A2DP, LE, aptX HD | 5.2, A2DP, LE |
| NFC | No | Yes |
| Positioning | GPS, GLONASS, BDS, GALILEO | GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) |
| 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, 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, proximity, compass | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Battery |
|---|
| Charging | 18W wired | 67W wired, PD3.0, QC3, 100% in 38 min |
| Type | 5000 mAh | Li-Po 4500 mAh |
| Misc |
|---|
| Colors | Gray, Coral, Aurora | Black, Gray, Blue, Green |
| Models | V2054A | - |
| Price | About 270 EUR | About 260 EUR |
vivo Y52s t1
- Affordable 5G connectivity
- Decent performance for basic tasks
- Lightweight and compact design (likely)
- Significantly slower performance than the K40S
- Slow 18W charging
- Limited gaming capabilities
Xiaomi Redmi K40S
- Powerful Snapdragon 870 processor
- Ultra-fast 67W charging
- Superior gaming performance
- Likely better camera quality
- Higher price point
- Potentially larger and heavier design
- May run slightly warmer under heavy load
Display Comparison
Neither device’s display specifications are provided, so a direct comparison is limited. However, given the K40S’s positioning, it likely features a higher-quality panel with potentially higher peak brightness and color accuracy. The Y52s t1, targeting a lower price point, likely utilizes a more cost-effective LCD or lower-tier AMOLED. Bezels are expected to be comparable, but the K40S may benefit from a slightly more refined design.
Camera Comparison
Without detailed camera specifications, analysis is limited. However, the Redmi K40S, positioned as a more premium device, likely features a larger main sensor and more sophisticated image processing algorithms. The Snapdragon 870’s ISP (Image Signal Processor) is also more capable than the 480’s. While both phones likely include standard features like HDR and night mode, the K40S is expected to deliver superior image quality, particularly in challenging lighting conditions. The presence of OIS (Optical Image Stabilization) on the K40S would be a significant advantage.
Performance
The performance gap between the Qualcomm SM8250-AC Snapdragon 870 5G in the Redmi K40S and the SM4350 Snapdragon 480 5G in the vivo Y52s t1 is substantial. The 870, built on a 7nm process, boasts a prime core clocked at 3.2 GHz, compared to the 480’s 2.0 GHz. This translates to significantly faster app loading times, smoother multitasking, and a far superior gaming experience. The K40S will handle graphically intensive games at higher settings with less throttling. The 480 is adequate for everyday tasks, but will struggle with demanding applications. The K40S likely utilizes faster LPDDR5 RAM, further enhancing performance.
Battery Life
The Redmi K40S’s 67W wired charging is a standout feature, capable of charging the device from 0-100% in a claimed 38 minutes. This is a massive advantage over the vivo Y52s t1’s 18W charging, which will take considerably longer. While battery capacity isn’t specified for either device, the K40S’s more efficient Snapdragon 870 and optimized power management could offset a potentially smaller battery size. The K40S also supports PD3.0 and QC3 charging standards, offering greater compatibility with various chargers.
Buying Guide
Buy the vivo Y52s t1 if you need a functional 5G smartphone for basic tasks like calling, texting, and light social media use, and your budget is extremely limited. You’ll accept compromises in performance and charging speed. Buy the Xiaomi Redmi K40S if you prefer a smoother, more responsive experience for gaming, multitasking, and demanding applications, and you value significantly faster charging capabilities. It’s the better long-term investment.
Frequently Asked Questions
❓ Will the Snapdragon 480 in the vivo Y52s t1 struggle with demanding games like Genshin Impact?
Yes, the Snapdragon 480 is not designed for graphically intensive games like Genshin Impact. You'll likely experience significant frame rate drops and stuttering, even on the lowest settings. The Redmi K40S with its Snapdragon 870 is far better suited for gaming.
❓ How much faster is the 67W charging on the Redmi K40S compared to the 18W charging on the vivo Y52s t1 in real-world use?
The 67W charging on the K40S can fully charge the phone in around 38 minutes, while the Y52s t1’s 18W charging will likely take over 2 hours. This means you can quickly top up your battery during short breaks, making the K40S much more convenient for users who are always on the go.
❓ Does the Redmi K40S get noticeably hot during extended gaming sessions?
The Snapdragon 870 is generally efficient, but it can generate heat under sustained load. The Redmi K40S likely incorporates thermal management solutions to mitigate this, but some warmth is expected during prolonged gaming. It's unlikely to reach throttling temperatures quickly, but it's a factor to consider.
