Side-by-side technical data
Xiaomi Redmi K90 Max vs Xiaomi Redmi 15 4G
Comparison between Xiaomi Redmi K90 Max and Xiaomi Redmi 15 4G: camera, battery, fast charging, display, performance and colors, side by side. More phones from Xiaomi.
NeoTeo's verdict
Which of the two is the better buy
The Xiaomi Redmi K90 Max is the clear choice for performance, display and battery; the Redmi 15 4G only makes sense if it costs less. The K90 Max combines 3,485,900 AnTuTu points, 16GB of RAM and 5G, versus 338,000, 8GB and 4G only on the Redmi 15 4G.
The K90 Max display is far ahead: AMOLED at 3,500 nits, 447 ppi and 165Hz, versus IPS LCD at 700 nits, 374 ppi and 144Hz. It also brings stronger protection, with IP68 and IP69 versus IP64, and a 90.3% usable surface versus 83.2%.
The K90 Max leads again in battery, cameras and connectivity: 8,550mAh and 100W versus 7,000mAh and 33W; its main camera has 1µm pixels, OIS and 8K video, versus 0.64µm pixels and 1080p. The Redmi 15 4G retains two practical advantages: Google services and expandable storage.
Xiaomi Redmi K90 Max
The Xiaomi Redmi K90 Max is the better buy for performance, with 3,485,900 AnTuTu points and 16GB of RAM.
Xiaomi Redmi 15 4G
The Xiaomi Redmi 15 4G is only the better buy if it costs less; it offers Google services and expandable storage.
The verdict
Your pick: Xiaomi Redmi K90 Max, ahead on Design & display, Performance & hardware, Camera, Connectivity and Battery & charging.
| Category | Redmi K90 Max | Redmi 15 4G |
|---|---|---|
| Design & display | 8.6 | 5.9 |
| Performance & hardware | 9.3 | 4.9 |
| Camera | 7.7 | 3.8 |
| Connectivity | 7.7 | 5.8 |
| Battery & charging | 8.3 | 6.3 |
Which one is for you?
Xiaomi Redmi K90 Max, if you care about…
- Battery Capacity
- 8,550 mAh
- against 7,000 mAh
- AnTuTu Score
- 3,485,900
- against 338,000
- RAM Capacity
- 16 GB
- against 8 GB
- Wi-Fi Standards
- Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 7 (802.11be), Wi-Fi 802.11a/b/g
- against Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 802.11a/b/g
Xiaomi Redmi 15 4G, if you care about…
- Expandable Storage
- Yes
- against No
- Google Services
- Yes
- against No
Specification comparison
Performance
| Specification | Redmi K90 Max | Redmi 15 4G |
|---|---|---|
| Processor Model | MediaTek Dimensity 9500 | Qualcomm Snapdragon 685 |
| Processor Process Size | 3 nm Best value | 6 nm |
| Graphics GPU | Mali-G1 Ultra MC12 | Qualcomm Adreno 610 |
| Storage Type | UFS 4.1 Best value | UFS 2.2 |
| Maximum CPU Clock | 4.21 GHz Best value | 2.8 GHz |
| Maximum Storage Capacity | 1 TB Best value | 256 GB |
| AnTuTu Score | 3,485,900 Best value | 338,000 |
| Geekbench 6 Single-Core | 3,781 Best value | 473 |
| Geekbench 6 Multi-Core | 12,189 Best value | 1,510 |
| CPU Description | Octa-core CPU with 1×4.21 GHz C1-Ultra, 3×3.5 GHz C1-Premium, and 4×2.7 GHz C1-Pro | Octa-core CPU with 4 Cortex-A73 cores at 2.8 GHz and 4 Cortex-A53 cores at 1.9 GHz. |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 16 GB Best value | 8 GB |
| RAM Type | LPDDR5X Best value | LPDDR4X |
| Expandable Storage | No | Yes Best value |
| AnTuTu version | v11 | v10 |
Design
| Specification | Redmi K90 Max | Redmi 15 4G |
|---|---|---|
| Body Colors | Silver, Blue, Black, Grey | Black, Grey, Purple, Blue, Silver |
| Body Thickness | 8.2 mm Best value | 8.6 mm |
| Body Width | 77.9 mm | 82.1 mm |
| Body Height | 162.9 mm | 171.1 mm |
| Weight | 227 g | 224 g Best value |
| Usable Surface | 90.3 % Best value | 83.2 % |
| Body Materials | Glass, Aluminium Alloy, Plastic Best value | Plastic |
| Resistance Features | IP68, IP69 Best value | IP64 |
| Waterproof Depth | 1.5 m | — |
| Drop Resistance Class | — | A |
| Repairability Class | — | C |
| Drop Test Count | — | 270 |
Battery
| Specification | Redmi K90 Max | Redmi 15 4G |
|---|---|---|
| Battery Efficiency Rating | — | B |
| Battery Capacity | 8,550 mAh Best value | 7,000 mAh |
| Battery Type | Si-Carbon Li-Ion | Si-Carbon Li-Ion |
| Fast Charge Power | 100 W Best value | 33 W |
| Battery Features | Non-Removable, Rechargeable, Fast Charging, Reverse Charging, Reverse Wireless Charging, Battery Level Indicator Best value | Fast Charging, Non-Removable, Battery Level Indicator, Charger Included, Rechargeable |
| Battery Endurance | — | 62 h |
| Charge cycles | — | 1,000 |
| Reverse wireless charging power | 22.5 W Best value | 18 W |
Display
| Specification | Redmi K90 Max | Redmi 15 4G |
|---|---|---|
| Display Aspect Ratio | 19.5:9 | 19.5:9 |
| Display Technology | AMOLED Best value | IPS LCD |
| Peak Display Brightness | 3,500 nits Best value | 700 nits |
| Display Diagonal | 6.83″ | 6.9″ Best value |
| Display Horizontal Resolution | 1,280 px Best value | 1,080 px |
| Display Vertical Resolution | 2,772 px Best value | 2,340 px |
| Display Pixel Density | 447 ppi Best value | 374 ppi |
| Display Refresh Rate | 165 Hz Best value | 144 Hz |
| Touch Sampling Rate | 480 Hz Best value | 288 Hz |
| Display Contrast Ratio | 8,000,000 :1 | — |
| Display Features | Hole-Punch Notch, HDR10+, Dolby Vision, Always-On Display, Capacitive Touch, Multi-Touch, Scratch Resistant, SGS Certified, TÜV Rheinland Low Blue Light, TÜV Rheinland Flicker-Free Certified, TÜV Rheinland Eye Comfort Certification, 3840Hz PWM, DCI-P3, Frameless | Hole-Punch Notch, Mohs Level 6, TÜV Rheinland Low Blue Light, TÜV Rheinland Flicker-Free Certified, TÜV Rheinland Eye Comfort Certification, DCI-P3, Scratch Resistant, Capacitive Touch, Multi-Touch, Frameless |
Sensors
| Specification | Redmi K90 Max | Redmi 15 4G |
|---|---|---|
| Fingerprint Sensor Placement | Under Display | Side |
Sensor
| Specification | Redmi K90 Max | Redmi 15 4G |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Compass, Gyroscope, Light Sensor, Proximity Sensor, Ultrasonic Proximity Sensor, Virtual Proximity Sensing, Cooling System | Fingerprint Sensor, Accelerometer, Compass, Gyroscope, Light Sensor, Virtual Proximity Sensing, Cooling System |
Software
| Specification | Redmi K90 Max | Redmi 15 4G |
|---|---|---|
| Operating System | Android 16 | Android 15 |
| OS Family | Android | Android |
| OS Version | 16 Best value | 15 |
| OS Update Support | — | 5 years |
| Google Services | No | Yes Best value |
Connectivity
| Specification | Redmi K90 Max | Redmi 15 4G |
|---|---|---|
| SIM Configurations | Dual Nano-SIM, Dual SIM Dual Standby | Dual Nano-SIM, Dual SIM Dual Standby |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1700 AWS, 3G UMTS 1900, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B19, LTE B28, 4G LTE B34, 4G LTE B38, 4G LTE B39, 4G LTE B40, 4G LTE B41, 4G LTE B42, 4G LTE B43, 4G LTE B48, 4G LTE B66, 5G NR n1, 5G NR n3, 5G NR n5, 5G NR n7, 5G NR n8, 5G NR n28, 5G NR n34, 5G NR n38, 5G NR n39, 5G NR n40, 5G NR n41, 5G NR n48, 5G NR n77, 5G NR n78, 3G UMTS B1, 3G UMTS B2, 3G UMTS B4, 3G UMTS B5, 3G UMTS B8, 4G LTE B28A, 5G NR n28a, 5G NR n66 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B5, 3G UMTS B8, 3G UMTS B6, 3G UMTS B7, 3G UMTS B9, 3G UMTS B10, 3G UMTS B11, 3G UMTS B12, 3G UMTS B13, 3G UMTS B17, 3G UMTS B20, 3G UMTS B21, 3G UMTS B28A, 3G UMTS B28B, 3G UMTS B32, 3G UMTS B38, 3G UMTS B40, 3G UMTS B41, 3G UMTS B42, 3G UMTS B43, 3G UMTS B48, 3G UMTS B66, 3G UMTS B77, 3G UMTS B78, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B20, 4G LTE B28A, 4G LTE B28B, 4G LTE B38, 4G LTE B40, 4G LTE B41, 4G LTE B2, 4G LTE B4 |
| Cellular Technologies | GSM, HSPA, LTE, 5G Best value | GSM, HSPA, LTE |
| Wi-Fi Standards | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 7 (802.11be), Wi-Fi 802.11a/b/g Best value | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 802.11a/b/g |
| Wi-Fi Features | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, MIMO | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display |
| Bluetooth Version | Bluetooth 5.4 Best value | Bluetooth 5.0 |
| Bluetooth Profiles | A2DP, LE, Auracast, ASHA, MIHC | A2DP, LE |
| Navigation Systems | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC Best value | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| Connectivity Features | Infrared, NFC, USB Type-C, USB Charging, USB Mass Storage, USB Host 2.0, USB OTG, Computer Sync, OTA Sync, Tethering | Virtual Proximity Sensing, Infrared, NFC, USB Type-C, Computer Sync, Tethering, VoLTE, USB Charging, USB Mass Storage, USB Host 2.0, USB OTG, USB 2.0 |
| USB Version | USB 3.2 Best value | USB 2.0 |
| Max. download speed | 10,700 Mbps Best value | 390 Mbps |
| Max. upload speed | — | 150 Mbps |
Audio
| Specification | Redmi K90 Max | Redmi 15 4G |
|---|---|---|
| Audio Features | Stereo Speakers, Dolby Atmos, Noise-Cancellation Microphone, Hi-Res Audio, Hi-Res Wireless Audio, A2DP, LE, LHDC 5, Auracast, ASHA, MIHC | Stereo Speakers, Dolby Atmos, A2DP, LE |
Technical
| Specification | Redmi K90 Max | Redmi 15 4G |
|---|---|---|
| Model numbers | — | 24129PN74G, 25062RN2DE, 25062RN2DA |
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