Acer DX900 vs Xiaomi Mi 9

Compare recorded specifications, size and practical differences.

Acer DX900

Replace DX900

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Xiaomi Mi 9

Replace Mi 9

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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.

WeightDX900: 26 g lighterDX900: 147 g · Mi 9: 173 g
WidthDX900: 14.2 mm narrowerDX900: 60.5 mm · Mi 9: 74.7 mm
Screen diagonalDX900: 3.59 in smaller diagonalDX900: 2.8 in · Mi 9: 6.39 in
Rear camera layoutSingle / TripleDX900: Single · Mi 9: Triple
DepthMi 9: 9.4 mm thinnerMi 9: 7.6 mm · DX900: 17 mm
HeightDX900: 51.5 mm shorterDX900: 106 mm · Mi 9: 157.5 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. DX900
Height
106 mm
Width
60.5 mm
Depth
17 mm+9.4 mm versus Mi 9

Weight
147 g
2. Mi 9
Height
157.5 mm+51.5 mm versus DX900
Width
74.7 mm+14.2 mm versus DX900
Depth
7.6 mm

Weight
173 g

Weight

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

1. DX900147 g
2. Mi 9173 g

+26 g versus DX900

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. DX900 2.8 in · 4:3 About 24.3 cm² rectangular area
2. Mi 9 6.39 in · 19.5:9 About 100.2 cm² rectangular area

Mi 9 has approximately 312.8% more rectangular screen area than DX900.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

DX900: Original memory entry

128 MB RAM · 256 MB ROM

Mi 9: Original memory entry

64/128 GB · 6/8 GB 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. DX900

NFC: See details Super AMOLED
Headphone jack: See details panorama
Memory card support: See details microSD (dedicated slot)

2. Mi 9

NFC: Yes
Headphone jack: No
Memory card support: No

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. DX9001530 mAh
2. Mi 93300 mAh

+1770 mAh versus DX900

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. DX9002. Mi 9

Everyday essentials

Everyday essentials
Specification	DX900	Mi 9
Dimensions (HxWxD)	106 Х 60.5 Х 17 mm	157.5 Х 74.7 Х 7.6 mm
Weight	147 g	173 g
Technology	TFT	Super AMOLED
Screen size	2.8" inch	6.39" inch
Screen resolution	480 x 640 px	1080 x 2340 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	128 MB RAM 256 MB ROM	64/128 GB 6/8 GB RAM
Memory card support	microSD (dedicated slot)	No
BatteryCapacity is not battery life. No endurance test is implied.	1530 mAh Removable Li-Po	3300 mAh Non-removable Li-Po
Operating system OS	Microsoft Windows Mobile 6.1 Professional	Android 9.0 (Pie)
Chipset	Unknown	Qualcomm SDM855 Snapdragon 855 (7 nm)
NFC	Super AMOLED	Yes
Headphone jack	panorama	No

Display

Display
Specification	DX900	Mi 9
Touchscreen	resistive touchscreen	Super AMOLED capacitive touchs
Display colors	65K	16M
Screen area	24.3 cm2	100.2 cm2
Screen format	4:3 (height:width)	19.5:9 (height:width)
Screen to body ratio	37.9%	85.2%
PPI /points per inch/	286 PPI	403 PPI
Screen protection	Unknown	Corning Gorilla Glass 6

Camera and Video

Camera and Video
Specification	DX900	Mi 9
Rear camera, main	3.15 MP Single	48 MP Triple
Camera specs	3.15 MP AF	48 MP f/1.8 1/2'' 0.8µm Laser/PDAF -16 MP f/2.2 13mm (ultrawide) 1/3.0'' 1.0µm Laser/PDAF -12 MP 54mm (telephoto) 1/3.6'' Laser/PDAF 2x optical zoom
Functions	Dual-LED flash	HDR
Video	Yes	1080p@30fps
Front camera, selfie	0.3 MP Single	20 MP Single
Specifications	VGA videocall camera	20 MP f/2.0 0.9μm
DxOMark Main ScoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	110
DxOMark PhotoLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	115
DxOMark VideoLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	99

Performance

Performance
Specification	DX900	Mi 9
Processor CPU	533 MHz Samsung S3C 6410	Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.8 GHz Kryo 485)
Graphics processor GPU	Unknown	Adreno 640
Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	371108
GeekBench 4 Single CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	3235
GeekBench 4 Multi-CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	10405
GeekBench 4 RenderScriptLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	7120
Antutu 8 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	445567
GeekBench 4 BatteryLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	6086
GeekBench 5 Single CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	678
GeekBench 5 Multi-CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	2575

General specs

General specs
Specification	DX900	Mi 9
Release date	2009 February	2019 February
Colors	Black	Lavender Violet Ocean Blue Piano Black
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.	90 EUR	450 EUR
Battery life	Stand by time- Up to 150 h Talking time- Up to10 h	Unknown
Body build	Unknown	Back glass (Gorilla Glass 5) aluminum frame (7000 series)

Communication and Connectivity

Communication and Connectivity
Specification	DX900	Mi 9
SIM card	Dual SIM (Mini-SIM)	Dual SIM (Nano-SIM dual stand-by)
Network	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 GSM 900 / 1800 / 1900 - SIM 2	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100) 2(1900) 3(1800) 4(1700/2100) 5(850) 7(2600) 8(900) 12(700) 17(700) 20(800) 28(700) 38(2600) 39(1900) 40(2300)
Speed	HSPA 7.2/0.384 Mbps	HSPA LTE-A
GPRS	Class 10	Yes
Edge	Class 10	Yes
Wi-Fi	Wi-Fi 802.11 b/g/n	Wi-Fi 802.11 a/b/g/n/ac dual-band Wi-Fi Direct DLNA hotspot
GPS	Yes SiRF Star III chipset	Yes with dual-band A-GPS GLONASS BDS GALILEO QZSS
USB	miniUSB	2.0 Type-C 1.0 reversible connector USB On-The-Go
Bluetooth	microUSB 2.0 A2DP	5.0 A2DP LE aptX HD

Music and Audio

Music and Audio
Specification	DX900	Mi 9
Radio	panorama	No
Others	Handwriting recognition	HDR10 -DCI-P3 Active noise cancellation with dedicated mic

Other features

Other features
Specification	DX900	Mi 9
Dop	Sensors Accelerometer Pocket Office -Voice memo -MP3 player Also known as Acer Tempo DX900 Acer Tempo X960	Sensors Fingerprint (under display) accelerometer gyro proximity compass Infrared port - Fast battery charging 27W (Quick Charge 4+) -Fast wireless charging 20W

Acer DX900 vs Xiaomi Mi 9

Acer DX900

Xiaomi Mi 9

Key differences

Physical size

Screen size

Memory variants

Practical features

1. DX900

2. Mi 9

Battery capacity

Specifications

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