4G Super AM-OLED Smartphone

Xiaomi Redmi K20 Pro Premium Edition Dual SIM TD-LTE CN 128GB M1903F11A / M1903F11C (Xiaomi Raphael)

Xiaomi · Announced May 2019

About Xiaomi Redmi K20 Pro Premium Edition

The Xiaomi Redmi K20 Pro Premium Edition presents a sleek profile measuring 74.3 by 156.7 by 8.8 millimetres and weighing just 191 grams, making it comfortable to hold despite its generous screen. At the front lies a 6.39‑inch AM‑OLED panel that delivers vivid colours and deep blacks, with a resolution of 1080 by 2340 pixels that keeps images sharp and text legible. Under the surface, the device runs Google Android 9.0 Pie, complemented by a substantial 8 GiB of RAM that supports smooth multitasking and responsive app performance.

Powering the phone is a 4 000 mAh battery, intended to keep the display and processor running through a typical day of use. Connectivity is handled via a single SIM slot, aligning with the specifications provided for this variant. Together, these elements combine to offer a balanced mix of visual quality, processing capability, and endurance in a compact form factor.

This variant

This variant replaces the single‑SIM slot of the base model with dual‑SIM capability and adds TD‑LTE China network compatibility. It is offered with 128 GB of internal storage, matching the lower‑tier sibling but identified by the M1903F11A/M1903F11C model code, whereas the other 128GB version carries M1903F11T and the higher‑tier model steps up to 256 GB storage.

Technical Specifications

Display

Size

6.39 inch

Type

Super AM-OLED

Resolution

1080x2340

Color depth

30-bit, 10-bit HDR

Screen-to-body

86.1%

Active area

68.01 × 147.36 mm

Touch

Capacitive multi-touch sensing screen, 10-point

Performance

Processor

Snapdragon 855

CPU

Octa-core, up to 2.8 GHz

GPU

Qualcomm Adreno 640

Process

7 nm

Platform

Google Android

Memory

RAM

8 GiB

Battery

Capacity

4000 mAh

Type

Lithium-ion polymer (LiPo)

Energy

15.4 Wh

Voltage

3.85 V

Cameras

Main

8000×6000 · 2× optical visibility

Ultrawide

12 mm visibility

Telephoto

53 mm visibility

Front

5184×3840 visibility

Dimensions

Size

74.3 × 156.7 × 8.8 mm

Weight

191 g

Connectivity

Wi-Fi

Wi-Fi 5

Wi-Fi services

Wi-Fi Direct, Wi-Fi Tethering, WiDi, Wi-Fi Calling (VoWiFi)

Bluetooth profiles

A2DP, A2DP with aptX codec, A2DP with aptX HD codec, AVRCP, GAVDP, HID, HSP, MAP, OPP, PAN, PBA

USB

USB Type-C reversible

USB services

USB charging, USB fast charging, USB Host, USB On-The-Go 1.3, USB On-The-Go 2.0, USB Power Delivery

NFC

NFC A, NFC B

GPS

GPS, GLONASS, Galileo, BeiDou, QZSS

GPS services

Simultaneous GPS (S-GPS), Assisted GPS, Kétfrekvenciás GPS, Geotagging, QuickGPS, QZSS

FM radio

Yes

LTE · 5 bandsTD-LTE · 6 bandsUMTS · 4 bandsGSM · 4 bandsCDMA · 1 bandsTD-SCDMA · 2 bands

All LTE bands (5)

LTE 1800 MHz (Band 3)
LTE 2100 MHz (Band 1)
LTE 2600 MHz (Band 7)
LTE 850 MHz (Band 5)
LTE 900 MHz (Band 8)

All TD-LTE bands (6)

TD-LTE 1900 MHz (Band 39)
TD-LTE 2000 MHz (Band XXXIV)
TD-LTE 2300 MHz (Band XL)
TD-LTE 2500 MHz (Band XLI)
TD-LTE 2500 MHz (Band XLI) bands
TD-LTE 2600 MHz (Band 38)

All UMTS bands (4)

UMTS 1900MHz (Band II, PCS)
UMTS 2100MHz (Band I, IMT)
UMTS 850MHz (Band V, CLR)
UMTS 900MHz (Band VIII)

All GSM bands (4)

GSM 1800MHz (B3)
GSM 1900MHz (PCS, B2)
GSM 850MHz (B5)
GSM 900MHz (B8)

All CDMA bands (1)

CDMA 800MHz (BC0, 850)

All TD-SCDMA bands (2)

TD-SCDMA 1900 MHz (B39)
TD-SCDMA 2000 MHz (B34)

Audio

Channels

stereo

Output

3.5mm

DAC

24-bit / 192 kHz

Sensors

Accelerometer, Compass, Gyroscope, In-screen fingerprint sensor, Light intensity sensor, Proximity sensor

Features

Fingerprint

Yes (in-screen fingerprint sensor)

SIM

Nano-SIM (4FF) · Dual standby

Carrier

China Telecom Corporation Limited China Unicom Netcom Limited

Markets

Asia (China)

Extras

Haptic touch feedback

Software extras

Voice Command, Navigation software, Augmented Reality (AR), Intelligent personal assistant, Face Recognition

Regulatory

Data status

Final

Model Variants

3 other phones with the same base model: Xiaomi Redmi K20 Pro Premium Edition