Plum Sync vs Xiaomi Redmi Note 9 Pro Max

Compare recorded specifications, size and practical differences.

Plum Sync

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Xiaomi Redmi Note 9 Pro Max

Replace 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.

WeightSync: 99 g lighterSync: 110 g · Redmi Note 9 Pro Max: 209 g
WidthSync: 14.3 mm narrowerSync: 62.4 mm · Redmi Note 9 Pro Max: 76.7 mm
Screen diagonalSync: 3.17 in smaller diagonalSync: 3.5 in · Redmi Note 9 Pro Max: 6.67 in
ChipsetMediatek MT6572 (28 nm) / Qualcomm SM7125 Snapdragon 720G (8 nm)Sync: Mediatek MT6572 (28 nm) · Redmi Note 9 Pro Max: Qualcomm SM7125 Snapdragon 720G (8 nm)
Rear camera layoutSingle / QuadSync: Single · Redmi Note 9 Pro Max: Quad
DepthRedmi Note 9 Pro Max: 2.7 mm thinnerRedmi Note 9 Pro Max: 8.8 mm · Sync: 11.5 mm

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. Sync
Height
118 mm
Width
62.4 mm
Depth
11.5 mm+2.7 mm versus Redmi Note 9 Pro Max

Weight
110 g
2. Redmi Note 9 Pro Max
Height
165.5 mm+47.5 mm versus Sync
Width
76.7 mm+14.3 mm versus Sync
Depth
8.8 mm

Weight
209 g

Weight

Bars start at zero and share a scale within this chart.

1. Sync110 g
2. Redmi Note 9 Pro Max209 g

+99 g versus Sync

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

Screen size

1. Sync 3.5 in · 3:2 About 36.5 cm² rectangular area
2. Redmi Note 9 Pro Max 6.67 in · 20:9 About 107.4 cm² rectangular area

Redmi Note 9 Pro Max has approximately 194.5% more rectangular screen area than Sync.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

Recorded RAM by storage capacity and phone
Storage	Sync	Redmi Note 9 Pro Max
64 GB	Unknown	6 GB RAM
128 GB	Unknown	6 / 8 GB RAMAlternative RAM configurations

Sync: Original memory entry

512 MB · 256 MB RAM

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Sync

NFC: Unknown
Headphone jack: Yes
Memory card support: See details microSD · up to 32 GB (dedicated slot)

2. Redmi Note 9 Pro Max

NFC: Unknown
Headphone jack: Yes
Memory card support: See details microSDXC (dedicated slot)

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded capacity

Bars start at zero and share a scale within this chart.

1. Sync1100 mAh
2. Redmi Note 9 Pro Max5020 mAh

+3920 mAh versus Sync

Specifications

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

1. Sync2. Redmi Note 9 Pro Max

Everyday essentials

Everyday essentials
Specification	Sync	Redmi Note 9 Pro Max
Dimensions (HxWxD)	118 Х 62.4 Х 11.5 mm	165.5 Х 76.7 Х 8.8 mm
Weight	110 g	209 g
Technology	TFT	IPS LCD
Screen size	3.5" inch	6.67" inch
Screen resolution	320 x 480 px	1080 x 2400 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	512 MB 256 MB RAM	64GB 6GB RAM 128GB 6GB RAM 128GB 8GB RAM
Memory card support	microSD up to 32 GB (dedicated slot)	microSDXC (dedicated slot)
BatteryCapacity is not battery life. No endurance test is implied.	1100 mAh Removable Li-Ion	5020 mAh Non-removable Li-Po
Operating system OS	Android 4.2 (Jelly Bean)	Android 10.0; MIUI 11
Chipset	Mediatek MT6572 (28 nm)	Qualcomm SM7125 Snapdragon 720G (8 nm)
Headphone jack	Yes	Yes

Display

Display
Specification	Sync	Redmi Note 9 Pro Max
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	256K	16M
Screen area	36.5 cm2	107.4 cm2
Screen format	3:2 (height:width)	20:9 (height:width)
Screen to body ratio	49.5%	84.6%
PPI /points per inch/	165 PPI	395 PPI
Screen protection	Unknown	Corning Gorilla Glass 5

Camera and Video

Camera and Video
Specification	Sync	Redmi Note 9 Pro Max
Rear camera, main	5 MP Single	64 MP Quad
Camera specs	5 MP	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	Unknown	HDR panorama
Video	Yes	1080p@30fps
Front camera, selfie	5 MP Single	32 MP Single
Specifications	5 MP	32 MP (wide) 1/2.8'' 0.8µm

Performance

Performance
Specification	Sync	Redmi Note 9 Pro Max
Processor CPU	Dual-core 1.0 GHz Cortex-A7	Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
Graphics processor GPU	Mali-400	Adreno 618
Antutu 8 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	278625

General specs

General specs
Specification	Sync	Redmi Note 9 Pro Max
Release date	2013 September	2020 March 12
Colors	Black White	Aurora Blue Glacier white Interstellar Black
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.	Unknown	180 EUR
Battery life	Stand by time- Up to 180 h Talking time- Up to 4 h	Unknown
Body build	Unknown	Glass front (Gorilla Glass 5) glass back (Gorilla Glass 5) plastic frame

Communication and Connectivity

Communication and Connectivity
Specification	Sync	Redmi Note 9 Pro Max
SIM card	Dual SIM	Dual SIM (Nano-SIM dual stand-by)
Network	Unknown	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	Unknown	HSPA 42.2/5.76 Mbps LTE-A
GPRS	Class 12	Yes
Edge	Class 12	Yes
Wi-Fi	Wi-Fi 802.11 b/g 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 Type-C 1.0 reversible connector
Bluetooth	2.1 A2DP EDR	5.0 A2DP LE

Music and Audio

Music and Audio
Specification	Sync	Redmi Note 9 Pro Max
Radio	Stereo FM radio	FM radio recording
Others	Unknown	450 nits typ. brightness (advertised)

Other features

Other features
Specification	Sync	Redmi Note 9 Pro Max
Dop	Sensors Accelerometer proximity compass - X210 Dual SIM X211 Single SIM	Sensors Fingerprint (side-mounted) accelerometer gyro proximity compass Infrared port - Fast charging 33W 50% in 30 min (advertised) - Splash-proof

Plum Sync vs Xiaomi Redmi Note 9 Pro Max

Plum Sync

Xiaomi Redmi Note 9 Pro Max

Key differences

Physical size

Screen size

Memory variants

Practical features

1. Sync

2. Redmi Note 9 Pro Max

Battery capacity

Specifications

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