Oppo
Side-by-side technical data
Oppo R821T FInd Muse vs Oppo K15
Compare up to four phones using typed, normalized technical data. Measurements stay numeric, capabilities stay boolean, and options stay comparable.
The verdict
Neither runs away with it: each wins something.
Which one is for you?
Oppo R821T FInd Muse, if you care about…
- Expandable Storage
- Yes
- against No
Oppo K15, if you care about…
- Battery Capacity
- 8,000 mAh
- against 1,700 mAh
- RAM Capacity
- 12 GB
- against 512 MB
- Wi-Fi Standards
- Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E
- against Wi-Fi 802.11b/g
- Display Technology
- AMOLED
- against IPS LCD
Specification comparison
Battery
| Specification | R821T FInd Muse | K15 |
|---|---|---|
| Battery Efficiency Rating | — | — |
| Battery Capacity | 1,700 mAh | 8,000 mAh Best value |
| Battery Type | Li-Ion | Si-Carbon Li-Ion Best value |
| Fast Charge Power | — | 80 W |
| Battery Features | — | Fast Charging, Bypass Charging, Reverse Charging, Non-Removable, Rechargeable, Battery Level Indicator, Charger Included |
| Battery Endurance | — | — |
| Wireless charging power | — | — |
| Charge cycles | — | — |
| Talk time | — | — |
| Standby time | — | — |
| Music playback time | — | — |
Design
| Specification | R821T FInd Muse | K15 |
|---|---|---|
| Body Colors | White | Grey, Silver |
| Body Thickness | 9.9 mm | 8.31 mm Best value |
| Body Width | 63.5 mm | 75.13 mm |
| Body Height | 123 mm | 158.3 mm |
| Weight | — | 205 g |
| Usable Surface | 58.3 % | 88.9 % Best value |
| Body Materials | — | Glass, Aluminium Alloy, Metal |
| Resistance Features | — | IP68, IP69 |
| Waterproof Depth | — | 1.5 m |
| Drop Resistance Class | — | — |
| Repairability Class | — | — |
| Foldable | No | No |
| Rugged Build | No | No |
| Drop Test Count | — | — |
| Unfolded thickness | — | — |
| QWERTY keyboard | — | — |
Performance
| Specification | R821T FInd Muse | K15 |
|---|---|---|
| Processor Model | MediaTek MT6572 | MediaTek Dimensity 7360 Super |
| Processor Process Size | 28 nm | 4 nm Best value |
| Graphics GPU | Mali-400 | Mali-G615 MC2 |
| Storage Type | — | UFS 3.1 |
| Maximum CPU Clock | 1.2 GHz | 2.5 GHz Best value |
| Maximum Storage Capacity | 4 GB | 256 GB Best value |
| AnTuTu Score | — | 768,000 |
| Geekbench 6 Single-Core | — | — |
| Geekbench 6 Multi-Core | — | — |
| CPU Description | Dual-core 1.2 GHz Cortex-A7 | Octa-core processor with 4 Cortex-A78 cores at 2.5 GHz and 4 Cortex-A55 cores at 2.0 GHz. |
| Processor Type | Dual-Core | Octa-Core |
| 64-Bit Processor | — | Yes |
| RAM Capacity | 512 MB | 12 GB Best value |
| RAM Type | — | LPDDR4X |
| Expandable Storage | Yes Best value | No |
| AnTuTu version | — | v11 |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | — | — |
Sensors
| Specification | R821T FInd Muse | K15 |
|---|---|---|
| Fingerprint Sensor Placement | — | Under Display |
Display
| Specification | R821T FInd Muse | K15 |
|---|---|---|
| Display Aspect Ratio | 5:3 | 19.5:9 |
| Peak Display Brightness | — | 1,200 nits |
| Display Technology | IPS LCD | AMOLED Best value |
| Display Diagonal | 4″ | 6.59″ Best value |
| Display Horizontal Resolution | 480 px | 1,256 px Best value |
| Display Vertical Resolution | 800 px | 2,760 px Best value |
| Display Pixel Density | 233 ppi | 460 ppi Best value |
| Display Refresh Rate | — | 120 Hz |
| Touch Sampling Rate | — | — |
| Display Contrast Ratio | — | — |
| Display Features | — | Hole-Punch Notch, DCI-P3, Scratch Resistant, Capacitive Touch, Multi-Touch, Frameless, One Billion Colors, Gorilla Glass, Always-On Display |
| Integrated Projector | No | No |
| Projector Brightness | — | — |
| Projector Horizontal Resolution | — | — |
| Projector Vertical Resolution | — | — |
| Cover display diagonal | — | — |
| Cover display refresh rate | — | — |
| Cover display peak brightness | — | — |
| Display colors | — | — |
Sensor
| Specification | R821T FInd Muse | K15 |
|---|---|---|
| Sensor Features | Accelerometer, Proximity Sensor | Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor, Compass, Gravity Sensor, Light Sensor, Cooling System |
Software
| Specification | R821T FInd Muse | K15 |
|---|---|---|
| Operating System | Android 4.2 | Android 16 |
| OS Family | Android | Android |
| OS Version | 4.2 | 16 Best value |
| OS Update Support | — | — |
| Direct OS Updates | — | No |
| Google Services | — | No |
| Web browser | — | — |
| Java (J2ME) | — | — |
Connectivity
| Specification | R821T FInd Muse | K15 |
|---|---|---|
| SIM Configurations | Dual Mini-SIM, Dual SIM Dual Standby | Dual Nano-SIM, Dual SIM Dual Standby, Dual SIM |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS 2100 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B2, 3G UMTS B3, 3G UMTS B4, 3G UMTS B5, 3G UMTS B6, 3G UMTS B8, 3G UMTS B19, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B18, 4G LTE B19, 4G LTE B20, 4G LTE B25, 4G LTE B26, 4G LTE B28A, 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 n2, 5G NR n3, 5G NR n5, 5G NR n7, 5G NR n8, 5G NR n18, 5G NR n20, 5G NR n25, 5G NR n26, 5G NR n28a, 5G NR n34, 5G NR n38, 5G NR n40, 5G NR n41, 5G NR n48, 5G NR n66, 5G NR n77, 5G NR n78 |
| Cellular Technologies | GSM, HSPA | GSM, HSPA, LTE, 5G Best value |
| Wi-Fi Standards | Wi-Fi 802.11b/g | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E Best value |
| Wi-Fi Features | Wi-Fi Hotspot | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, MIMO |
| Bluetooth Version | — | Bluetooth 5.4 |
| Bluetooth Profiles | — | A2DP, LE, aptX HD |
| Navigation Systems | GPS | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC Best value |
| Connectivity Features | 3.5 mm Audio Jack, FM Radio, microUSB | Infrared, NFC, USB Type-C, USB Charging, USB Mass Storage, USB OTG, USB Host, USB Host 3.2, Computer Sync, OTA Sync, Tethering, VoLTE, USB 2.0 |
| USB Version | microUSB | USB 2.0 |
| SAR American Head | — | — |
| SAR American Body | — | — |
| SAR (EU) head | — | — |
| SAR (EU) body | — | — |
| Messaging | — | — |
Audio
| Specification | R821T FInd Muse | K15 |
|---|---|---|
| Microphone Count | — | 2 |
| Audio Features | Loudspeaker | Stereo Speakers, A2DP, LE, aptX HD, LHDC 5 Best value |
| Alert types | — | — |
Technical
| Specification | R821T FInd Muse | K15 |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | — |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | R821T FInd Muse | K15 |
|---|---|---|
| Built-in functions | — | — |
