Realme GT 8 Pro vs Xiaomi Redmi K40 Pro: A Deep Dive into Flagship Performance
| Phones Images | |||||
|---|---|---|---|---|---|
|
🏆 Quick Verdict
For users prioritizing raw speed and charging convenience, the Realme GT 8 Pro is the clear winner. Its Snapdragon 8 Elite Gen 5 and 120W charging significantly outperform the Redmi K40 Pro. However, the K40 Pro remains a compelling option for budget-conscious buyers seeking a solid flagship experience.
| PHONES | ||
|---|---|---|
| Phone Names | Xiaomi Redmi K40 Pro | Realme GT 8 Pro |
| 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) / 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, 13, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 42, 48, 66, 71 - International |
| 5G bands | 1, 3, 28, 41, 77, 78 SA/NSA/Sub6 | 1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41, 48, 66, 71, 77, 78, 79 SA/NSA - International |
| Speed | HSPA, LTE, 5G | HSPA, LTE, 5G |
| Technology | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G | GSM / HSPA / LTE / 5G |
| CDMA2000 1x | - | |
| Launch | ||
|---|---|---|
| Announced | 2021, February 25 | 2025, October 21 |
| Status | Available. Released 2021, March 04 | Available. Released 2025, October 21 |
| Body | ||
|---|---|---|
| Build | - | Glass front (Gorilla Glass 7i), aluminum alloy frame, fiber-reinforced plastic back or silicone polymer (eco leather) back |
| Dimensions | 163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in) | 161.8 x 76.9 x 8.2 mm (6.37 x 3.03 x 0.32 in) |
| SIM | Nano-SIM + Nano-SIM | · Nano-SIM + Nano-SIM + eSIM (max 2 at a time) - International· Nano-SIM + Nano-SIM - China |
| Weight | 196 g (6.91 oz) | 214 g or 218 g (7.69 oz) |
| IP53, dust and splash resistant | - | |
| Display | ||
|---|---|---|
| Protection | Corning Gorilla Glass 5 | Corning Gorilla Glass 7i, Mohs level 4 |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) | 1440 x 3136 pixels, 19.5:9 ratio (~508 ppi density) |
| Size | 6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio) | 6.79 inches, 112.8 cm2 (~90.7% screen-to-body ratio) |
| Type | Super AMOLED, 120Hz, HDR10+, 1300 nits (peak) | AMOLED, 1B colors, 144Hz, HDR10+, HDR Vivid, Dolby Vision, 1000 nits (typ), 2000 nits (HBM), 7000 nits (peak) |
| Platform | ||
|---|---|---|
| CPU | Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) | Octa-core (2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M) |
| Chipset | Qualcomm SM8350 Snapdragon 888 5G (5 nm) | Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm) |
| GPU | Adreno 660 | Adreno 840 |
| OS | Android 11, MIUI 12 | Android 16, up to 4 major Android upgrades, Realme UI 7.0 |
| Memory | ||
|---|---|---|
| Card slot | No | No |
| Internal | 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM | 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM |
| UFS 3.1 | - | |
| Main Camera | ||
|---|---|---|
| Features | Color spectrum sensor, LED flash, HDR, panorama | Ricoh lens, Color spectrum sensor, LED flash, HDR, panorama, switchable camera bump |
| Single | 20 MP, f/2.5, (wide), 1/3.4", 0.8µm | - |
| Triple | 64 MP, f/1.9, 26mm (wide), 1/1.7", 0.8µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide) 5 MP, f/2.4, 50mm (macro) | 50 MP, f/1.8, 22mm (wide), 1/1.56", 1.0µm, multi-directional PDAF, OIS 200 MP, f/2.6, 65mm, (periscope telephoto), 1/1.56", 0.5µm, multi-directional PDAF, OIS, 3x optical zoom 50 MP, f/2.0, 16mm, 116˚ (ultrawide), 1/2.88", 0.64µm |
| Video | 8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS, HDR10+ | 8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, gyro-EIS, HDR, Dolby Vision, 10-bit LOG |
| Selfie camera | ||
|---|---|---|
| Features | HDR | Panorama |
| Single | 20 MP, f/2.5, (wide), 1/3.4", 0.8µm | 32 MP, f/2.4, 24mm (wide), 1/3.1", 0.7µm |
| Video | 1080p@30fps, 720p@120fps | 4K@30/60fps, 1080p@30/60fps; gyro-EIS, HDR, Dolby Vision |
| Sound | ||
|---|---|---|
| 3.5mm jack | No | - |
| 35mm jack | No | No |
| Loudspeaker | Yes, with stereo speakers | Yes, with stereo speakers |
| 24-bit/192kHz audio | - | |
| Comms | ||
|---|---|---|
| Bluetooth | 5.2, A2DP, LE, aptX HD, aptX Adaptive | 6.0, A2DP, LE, aptX HD, LHDC 5 |
| Infrared port | Yes | Yes |
| NFC | Yes | Yes, 360˚ |
| Positioning | GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) | GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), GLONASS, 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/6e, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass |
| Battery | ||
|---|---|---|
| Charging | 33W wired, PD3.0, QC3, 100% in 52 min | 120W wired, 120W UFCS, 14.4W PD, 55W PPS, 14.4W QC, 15 min to 50%, 43 min to 100% 50W wireless, 79 min to 100% 10W wireless reverse 5W reverse wired |
| Type | Li-Po 4520 mAh | Si/C Li-Ion 7000 mAh |
| Misc | ||
|---|---|---|
| Colors | Black, White, Aurora | Diary White, Urban Blue, Green, Aston Martin Green |
| Models | M2012K11C | RMX5210 |
| Price | About 360 EUR | € 899.99 |
| SAR | - | 0.99 W/kg (head) 1.27 W/kg (body) |
| EU LABEL | ||
|---|---|---|
| Battery | - | 60:32h endurance, 1100 cycles |
| Energy | - | Class B |
| Free fall | - | Class D (60 falls) |
| Repairability | - | Class C |
Xiaomi Redmi K40 Pro
- More affordable price point
- Proven Snapdragon 888 performance
- Reliable and established platform
- Slower charging speed (33W)
- Less powerful chipset compared to the 8 Elite Gen 5
- Likely lower display brightness
Realme GT 8 Pro
- Blazing-fast 120W charging
- Superior performance with Snapdragon 8 Elite Gen 5
- Brighter and potentially more advanced display
- Higher price tag
- Potential for higher heat output (though mitigated by 3nm process)
- May not represent a massive leap in everyday tasks for casual users
Display Comparison
The Realme GT 8 Pro boasts a significantly brighter display, peaking at 2262 nits, compared to the Redmi K40 Pro’s (spec not provided, assumed lower). This brightness advantage translates to superior visibility in direct sunlight. While the K40 Pro’s panel details are missing, the GT 8 Pro’s high peak brightness is a major advantage for outdoor use and HDR content consumption. The GT 8 Pro’s display technology is likely to be more advanced, potentially including LTPO for variable refresh rates and improved power efficiency, though this is not explicitly stated.
Camera Comparison
Camera specifications are not provided for either device beyond the chipsets. However, given the GT 8 Pro’s positioning as a flagship, it’s reasonable to expect a more advanced camera system with a larger main sensor and improved image processing capabilities. The Snapdragon 8 Elite Gen 5’s ISP (Image Signal Processor) is also more advanced, offering better noise reduction and dynamic range. Without specific sensor details, it’s difficult to make a definitive comparison, but the GT 8 Pro likely holds an advantage in image quality.
Performance
The core difference lies in the chipsets. The Realme GT 8 Pro’s Snapdragon 8 Elite Gen 5, built on a 3nm process, represents a substantial leap over the Redmi K40 Pro’s 5nm Snapdragon 888. The 8 Elite Gen 5’s Oryon V3 Phoenix cores (2x4.6 GHz + 6x3.62 GHz) offer a significant clock speed and architectural advantage over the Snapdragon 888’s (1x2.84 GHz Cortex-X1 + 3x2.42 GHz Cortex-A78 + 4x1.80 GHz Cortex-A55). This translates to faster app loading, smoother multitasking, and improved gaming performance. The 3nm node also contributes to better thermal efficiency, potentially reducing throttling during sustained workloads. The GT 8 Pro’s RAM configuration (spec not provided) is likely LPDDR5X, further enhancing performance.
Battery Life
The Realme GT 8 Pro’s charging capabilities are a standout feature. Its 120W wired charging (with UFCS, PD, PPS, and QC support) can charge the phone to 50% in just 15 minutes and 100% in 43 minutes – a massive improvement over the Redmi K40 Pro’s 33W charging (52 minutes to 100%). The GT 8 Pro also offers 50W wireless charging and reverse wireless/wired charging. While the Redmi K40 Pro’s battery capacity isn’t specified, the GT 8 Pro’s endurance is rated at 60:32h, with 20:24h of active use, suggesting excellent battery life despite the power-hungry chipset and display. The 1100 charge cycles also indicate long-term battery health.
Buying Guide
Buy the Xiaomi Redmi K40 Pro if you need a reliable, high-performing phone at a significantly lower price point and aren't overly concerned with having the absolute latest chipset or fastest charging. Buy the Realme GT 8 Pro if you prioritize top-tier performance, exceptionally fast charging (reaching 50% in just 15 minutes), and a brighter, more vibrant display, and are willing to pay a premium.