O2 XDA Exec vs Xiaomi Mi 4i: specs comparison

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.

Weight

Mi 4i: 155 g lighter

XDA Exec:

285 g

Mi 4i:

130 g
Width

Mi 4i: 11.4 mm narrower

XDA Exec:

81 mm

Mi 4i:

69.6 mm
Screen diagonal

XDA Exec: 1.4 in smaller diagonal

XDA Exec:

3.6 in

Mi 4i:

5 in
Depth

Mi 4i: 17.2 mm thinner

XDA Exec:

25 mm

Mi 4i:

7.8 mm
Height

XDA Exec: 11.1 mm shorter

XDA Exec:

127 mm

Mi 4i:

138.1 mm
Release year

XDA Exec:

2005

Mi 4i:

2015

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.

1. XDA Exec

Height:

127 mm
Width:

81 mm +11.4 mm versus Mi 4i
Depth:

25 mm +17.2 mm versus Mi 4i
2. Mi 4i

Height:

138.1 mm +11.1 mm versus XDA Exec
Width:

69.6 mm
Depth:

7.8 mm

Weight

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

1. XDA Exec

285 g

+155 g versus Mi 4i
2. Mi 4i

130 g

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.

1. XDA Exec

Screen diagonal:

3.6 in

Aspect ratio (height:width):

4:3

Approximate rectangular screen area:

40.1 cm²
2. Mi 4i

Screen diagonal:

5 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

68.9 cm²

Mi 4i has approximately 71.7% more rectangular screen area than XDA Exec.

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 for XDA Exec, Mi 4i, compared at the same storage capacity.
Storage	XDA Exec	Mi 4i
16 GB	Unknown	2 GB RAM
32 GB	Unknown	2 GB RAM

XDA Exec: Original memory entry

64 MB RAM · 128 MB ROM

Practical features

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

1. XDA Exec

NFC:: Unknown
Headphone jack:: No
Memory card support:: See details SDIO/MMC

2. Mi 4i

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

Battery capacity

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

Recorded battery capacity

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

1. XDA Exec

1620 mAh
2. Mi 4i

3120 mAh

+1500 mAh versus XDA Exec

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. XDA Exec2. Mi 4i

Everyday essentials

Everyday essentials — specifications for XDA Exec, Mi 4i.
Specification	XDA Exec	Mi 4i
Dimensions (HxWxD)	127 Х 81 Х 25 mm	138.1 Х 69.6 Х 7.8 mm
Weight	285 g	130 g
Technology	TFT	IPS LCD
Screen size	3.6" inch	5" inch
Screen resolution	640 x 480 px	1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	64 MB RAM 128 MB ROM	16/32 GB 2 GB RAM
Memory card support	SDIO/MMC	No
Battery Capacity is not battery life. No endurance test is implied.	1620 mAh Removable Li-Ion	3120 mAh Non-removable Li-Ion
Operating system OS	Microsoft Windows Mobile 5.0 PocketPC	Android 5.0.2 (Lollipop); MIUI 8.2
Chipset	Unknown	Qualcomm MSM8939 Snapdragon 615 (28 nm)
Headphone jack	No	Yes

Display

Display — specifications for XDA Exec, Mi 4i.
Specification	XDA Exec	Mi 4i
Touchscreen	resistive touchscreen	capacitive touchscreen
Display colors	65K	16M
Screen area	40.1 cm2	68.9 cm2
Screen format	4:3 (height:width)	16:9 (height:width)
Screen to body ratio	39.0%	71.7%
PPI /points per inch/	222 PPI	441 PPI
Screen protection	Unknown	Corning scratch-resistant glass

Camera and Video

Camera and Video — specifications for XDA Exec, Mi 4i.
Specification	XDA Exec	Mi 4i
Rear camera, main	1.3 MP Single	13 MP Single
Camera specs	1.3 MP	13 MP AF f/2.0
Functions	Unknown	Dual-LED dual-tone flash panorama HDR
Video	Yes	1080p@30fps 480p@120fps
Front camera, selfie	0.3 MP Single	5 MP Single
Specifications	VGA videocall camera	5 MP f/1.8

Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for XDA Exec, Mi 4i.
Specification	XDA Exec	Mi 4i
Processor CPU	Intel Bulverde 520 MHz	Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Graphics processor GPU	Unknown	Adreno 405
Antutu 7 score *	Unknown	40156
GeekBench 4 Single Core *	Unknown	617
GeekBench 4 Multi-Core *	Unknown	1374
GeekBench 4 RenderScript *	Unknown	1404

General specs

General specs — specifications for XDA Exec, Mi 4i.
Specification	XDA Exec	Mi 4i
Release date	2005 August	2015 April
Colors	Stylish black	Dark Gray Black White Yellow Blue Pink
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	300 EUR	260 EUR
Battery life	Stand by time- Up to 250 h Talking time- Up to 8 h	Talking time- Up to 35 h (3G)
Body build	Unknown	plastic body

Communication and Connectivity

Communication and Connectivity — specifications for XDA Exec, Mi 4i.
Specification	XDA Exec	Mi 4i
SIM card	Mini-SIM	Dual SIM (Micro-SIM dual stand-by)
Network	Show all network frequencies: -2G - GSM 900 / 1800 / 1900	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 1900 / 2100 TD-SCDMA -4G - LTE band 3(1800) 7(2600) 38(2600) 39(1900) 40(2300) 41(2500)
Speed	Yes 384 kbps	HSPA LTE Cat4 150/50 Mbps
GPRS	Class 10	Yes
Edge	No	Yes
Wi-Fi	Wi-Fi 802.11b	Wi-Fi 802.11 a/b/g/n/ac dual-band WiFi Direct hotspot
GPS	No	Yes with A-GPS GLONASS BDS
USB	miniUSB	microUSB 2.0 USB Host
Bluetooth	1.2	4.1 A2DP
Harmful irradiation	Unknown	SAR - 1.29 W/kg (head)

Music and Audio

Music and Audio — specifications for XDA Exec, Mi 4i.
Specification	XDA Exec	Mi 4i
Radio	No	Stereo FM radio
Others	Handwriting recognition Dual speakers	Active noise cancellation with dedicated mic

Other features

Other features — specifications for XDA Exec, Mi 4i.
Specification	XDA Exec	Mi 4i
Dop	Infrared port - Pocket Office -Voice memo -MP3/AAC player - Produced by HTC. Functionally identical to Qtek 9000 i-mate JASJAR and T-Mobile MDA IV.	Sensors Accelerometer gyro proximity compass - Fast battery charging: 40% in 60 min (Quick Charge)

O2 XDA Exec vs Xiaomi Mi 4i

O2 XDA Exec

Xiaomi Mi 4i