Sharp Pi vs Xiaomi Redmi Note 9 Pro Max

Compare recorded specifications, size and practical differences.

Sharp Pi

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Xiaomi Redmi Note 9 Pro Max

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Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

Screen diagonalPi: 1.47 in smaller diagonalPi: 5.2 in · Redmi Note 9 Pro Max: 6.67 in
ChipsetMediatek MT6737M (28 nm) / Qualcomm SM7125 Snapdragon 720G (8 nm)Pi: Mediatek MT6737M (28 nm) · Redmi Note 9 Pro Max: Qualcomm SM7125 Snapdragon 720G (8 nm)
Rear camera layoutDual / QuadPi: Dual · Redmi Note 9 Pro Max: Quad
Release year2018 / 2020Pi: 2018 · Redmi Note 9 Pro Max: 2020

Physical size

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

Front

Side

1. Pi
Height
Unknown
Width
Unknown
Depth
Unknown

Weight
Unknown

Unavailable dimensions are omitted from the drawing.
2. Redmi Note 9 Pro Max
Height
165.5 mm
Width
76.7 mm
Depth
8.8 mm

Weight
209 g

Specifications

Open a section for more detail. Scroll inside a table to keep phone names visible; on narrow screens, swipe sideways or use the arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

Everyday essentials

Everyday essentials
Specification	Pi	Redmi Note 9 Pro Max
Dimensions (HxWxD)	Х Х mm	165.5 Х 76.7 Х 8.8 mm
Weight	0 g	209 g
Technology	IPS LCD	IPS LCD
Screen size	5.2" inch	6.67" inch
Screen resolution	720 x 1280 px	1080 x 2400 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	16 GB 2 GB RAM	64GB 6GB RAM 128GB 6GB RAM 128GB 8GB RAM
Memory card support	microSD up to 128 GB	microSDXC (dedicated slot)
BatteryCapacity is not battery life. No endurance test is implied.	3000 mAh Li-Ion	5020 mAh Non-removable Li-Po
Operating system OS	Android 7.0 (Nougat)	Android 10.0; MIUI 11
Chipset	Mediatek MT6737M (28 nm)	Qualcomm SM7125 Snapdragon 720G (8 nm)
Headphone jack	No	Yes

Display

Display
Specification	Pi	Redmi Note 9 Pro Max
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	74.5 cm2	107.4 cm2
Screen format	16:9 (height:width)	20:9 (height:width)
Screen to body ratio	Unknown	84.6%
PPI /points per inch/	282 PPI	395 PPI
Screen protection	Scratch-resistant glass	Corning Gorilla Glass 5

Camera and Video

Camera and Video
Specification	Pi	Redmi Note 9 Pro Max
Rear camera, main	13 MP Dual	64 MP Quad
Camera specs	13 MP f/2.2 AF -2 MP depth sensor	64 MP f/1.9 (wide) 1/1.72" 0.8µm PDAF -8 MP f/2.2 13mm (ultrawide) 1/4.0" 1.12µm -5 MP f/2.4 (macro) 1.12µm -2 MP (depth)
Functions	LED flash panorama HDR	HDR panorama
Video	1080p@30fps	1080p@30fps
Front camera, selfie	8 MP Single	32 MP Single
Specifications	8 MP	32 MP (wide) 1/2.8'' 0.8µm

Performance

Performance
Specification	Pi	Redmi Note 9 Pro Max
Processor CPU	Quad-core 1.3 GHz Cortex-A53	Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
Graphics processor GPU	Mali-T720	Adreno 618
Antutu 8 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	278625

General specs

General specs
Specification	Pi	Redmi Note 9 Pro Max
Release date	2018 February	2020 March 12
Colors	White/Gold Black	Aurora Blue Glacier white Interstellar Black
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.	110 EUR	180 EUR
Body build	Unknown	Glass front (Gorilla Glass 5) glass back (Gorilla Glass 5) plastic frame

Communication and Connectivity

Communication and Connectivity
Specification	Pi	Redmi Note 9 Pro Max
SIM card	Dual SIM (Nano-SIM dual stand-by)	Dual SIM (Nano-SIM dual stand-by)
Network	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100) 3(1800) 5(850) 7(2600) 8(900) 40(2300)	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100) 3(1800) 5(850) 8(900) 40(2300) 41(2500)
Speed	HSPA LTE Cat4 150/50 Mbps	HSPA 42.2/5.76 Mbps LTE-A
GPRS	Yes	Yes
Edge	Yes	Yes
Wi-Fi	Wi-Fi 802.11 b/g/n Wi-Fi Direct hotspot	Wi-Fi 802.11 a/b/g/n/ac dual-band Wi-Fi Direct hotspot
GPS	Yes with A-GPS	Yes with A-GPS GLONASS GALILEO BDS NavIC
USB	microUSB 2.0 USB On-The-Go	2.0 Type-C 1.0 reversible connector
Bluetooth	4.0 A2DP	5.0 A2DP LE

Music and Audio

Music and Audio
Specification	Pi	Redmi Note 9 Pro Max
Radio	To be confirmed	FM radio recording
Others	Active noise cancellation with dedicated mic	450 nits typ. brightness (advertised)

Other features

Other features
Specification	Pi	Redmi Note 9 Pro Max
Dop	Sensors Fingerprint (front-mounted) accelerometer proximity - For Indonesia Vietnam	Sensors Fingerprint (side-mounted) accelerometer gyro proximity compass Infrared port - Fast charging 33W 50% in 30 min (advertised) - Splash-proof