Xiaomi Redmi K40 Pro+ vs OnePlus 9RT 5G: A Deep Dive into Snapdragon 888 Performance and Value
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🏆 Quick Verdict
For the average user prioritizing convenience and rapid replenishment, the OnePlus 9RT 5G emerges as the winner. Its 65W charging dramatically reduces downtime compared to the Redmi K40 Pro+'s 33W, making it ideal for power users. However, the K40 Pro+ remains a strong contender for those willing to trade charging speed for potential cost savings.
| PHONES | ||
|---|---|---|
| Phone Names | Xiaomi Redmi K40 Pro+ | OnePlus 9RT 5G |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 |
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42 | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41 - Global |
| 5G bands | 1, 3, 28, 41, 77, 78 SA/NSA/Sub6 | 1, 3, 5, 8, 28, 40, 41, 78 SA/NSA - Global |
| Speed | HSPA, LTE, 5G | HSPA 42.2/5.76 Mbps, LTE Cat18 1200/200 Mbps, 5G |
| Technology | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G | GSM / CDMA / HSPA / EVDO / LTE / 5G |
| - | CDMA2000 1xEV-DO | |
| Launch | ||
|---|---|---|
| Announced | 2021, February 25 | 2021, October 13 |
| Status | Available. Released 2021, March 04 | Available. Released 2021, October 19 |
| Body | ||
|---|---|---|
| Build | - | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame |
| Dimensions | 163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in) | 162.2 x 74.6 x 8.3 mm (6.39 x 2.94 x 0.33 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Weight | 196 g (6.91 oz) | 198.5 g (7.02 oz) |
| 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 (~397 ppi density) |
| Size | 6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio) | 6.62 inches, 106.3 cm2 (~87.9% screen-to-body ratio) |
| Type | Super AMOLED, 120Hz, HDR10+, 1300 nits (peak) | AMOLED, 120Hz, HDR10+ |
| - | Always-on display | |
| Platform | ||
|---|---|---|
| CPU | Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) | Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) |
| Chipset | Qualcomm SM8350 Snapdragon 888 5G (5 nm) | Qualcomm SM8350 Snapdragon 888 5G (5 nm) |
| GPU | Adreno 660 | Adreno 660 |
| OS | Android 11, MIUI 12 | Android 11, upgradable to Android 13, OxygenOS 13 |
| Memory | ||
|---|---|---|
| Card slot | No | No |
| Internal | 256GB 12GB RAM | 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM |
| - | UFS 3.1 | |
| Main Camera | ||
|---|---|---|
| Features | Color spectrum sensor, LED flash, HDR, panorama | Dual-LED flash, HDR, panorama |
| Quad | - | 50 MP, f/1.8, 24mm (wide), 1/1.56”, 1.0µm, PDAF, OIS 16 MP, f/2.2, 14mm, 123˚ (ultrawide), 1/3.6", 1.0µm 2 MP (macro) |
| Single | - | 16 MP, f/2.4, (wide), 1/3.06", 1.0µm |
| Triple | 108 MP, f/1.8, 26mm (wide), 1/1.52", 0.7µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide) 5 MP, f/2.4, 50mm (macro) | - |
| Video | 8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS, HDR10+ | 4K@30/60fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS |
| Selfie camera | ||
|---|---|---|
| Features | HDR | HDR |
| Single | 20 MP, f/2.5, (wide), 1/3.4", 0.8µm | 16 MP, f/2.4, (wide), 1/3.06", 1.0µm |
| Video | 1080p@30fps, 720p@120fps | 1080p@30fps, gyro-EIS |
| Sound | ||
|---|---|---|
| 3.5mm jack | - | No |
| 35mm jack | No | No |
| Loudspeaker | Yes, with stereo speakers | Yes, with stereo speakers |
| Comms | ||
|---|---|---|
| Bluetooth | 5.2, A2DP, LE | 5.2, A2DP, LE |
| Infrared port | Yes | - |
| NFC | Yes | Yes |
| Positioning | GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) | GPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a) |
| 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/6e, 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, barometer | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| Battery | ||
|---|---|---|
| Charging | 33W wired, PD3.0, QC3, 100% in 52 min | 65W wired, 100% in 29 min |
| Type | Li-Po 4520 mAh | Li-Po 4500 mAh |
| Misc | ||
|---|---|---|
| Colors | Black, White, Aurora | Hacker Black, Nano Silver, Blue |
| Models | - | MT2110, MT2111 |
| Price | About 470 EUR | About 590 EUR |
Xiaomi Redmi K40 Pro+
- Potentially better sustained performance due to less aggressive throttling (speculation)
- Likely more affordable price point
- Solid Snapdragon 888 performance
- Significantly slower 33W charging
- Camera image processing may be less refined
OnePlus 9RT 5G
- Ultra-fast 65W charging for minimal downtime
- Potential for Hasselblad-tuned camera image processing
- Generally smoother software experience (OnePlus reputation)
- May exhibit more aggressive thermal throttling
- Likely a higher price tag
Display Comparison
Both devices utilize AMOLED panels, but detailed specifications regarding peak brightness, color gamut coverage, and refresh rate are absent. Given OnePlus’s history with vibrant displays, the 9RT likely offers a slightly more saturated and visually punchy experience. However, without concrete data, it’s difficult to definitively declare a winner. Both will likely offer excellent viewing angles and contrast ratios typical of AMOLED technology. The absence of LTPO technology in either device suggests a less dynamically adaptive refresh rate, potentially impacting battery life during static content viewing.
Camera Comparison
Detailed camera specifications are missing, making a comprehensive comparison challenging. However, the market positioning suggests the OnePlus 9RT likely benefits from Hasselblad’s color science, offering more refined image processing. The Redmi K40 Pro+ may lean towards a more saturated, contrast-boosted aesthetic, typical of Xiaomi’s image processing. Without knowing sensor sizes and lens apertures, it’s impossible to assess low-light performance or dynamic range capabilities. The presence or absence of Optical Image Stabilization (OIS) on the main sensor would be a significant factor, favoring the device equipped with it.
Performance
At the heart of both the Redmi K40 Pro+ and OnePlus 9RT 5G lies the Qualcomm SM8350 Snapdragon 888 5G (5 nm) chipset, featuring an octa-core CPU configuration identical in both devices: 1x2.84 GHz Cortex-X1, 3x2.42 GHz Cortex-A78, and 4x1.80 GHz Cortex-A55. This means raw processing power will be virtually indistinguishable between the two. The key differentiator will be thermal management. OnePlus has a reputation for aggressive thermal throttling to maintain sustained performance, while Xiaomi’s approach is often more conservative. This could translate to slightly longer peak performance from the K40 Pro+ before throttling kicks in, but potentially lower sustained performance overall. RAM configurations are not specified, but both are expected to utilize LPDDR5 for fast memory access.
Battery Life
The most significant difference lies in charging speed. The OnePlus 9RT 5G boasts 65W wired charging, achieving a 100% charge in just 29 minutes. Conversely, the Redmi K40 Pro+ is limited to 33W, taking 52 minutes for a full charge. While battery capacity isn’t specified, the faster charging of the 9RT significantly mitigates any potential disadvantage from a smaller battery. For users who frequently top up their phones throughout the day, the 9RT’s charging speed is a game-changer.
Buying Guide
Buy the Xiaomi Redmi K40 Pro+ if you prioritize maximizing value and are comfortable with a slower charging experience. It’s ideal for users who charge overnight or don’t frequently deplete their battery. Buy the OnePlus 9RT 5G if you demand the fastest possible charging speeds and value the convenience of a full charge in under 30 minutes, even if it comes at a slight premium.