Nokia N81 vs Sharp Aquos R2 compact

Compare recorded specifications, size and practical differences.

Nokia N81

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Sharp Aquos R2 compact

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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.

WeightAquos R2 compact: 5 g lighterAquos R2 compact: 135 g · N81: 140 g
WidthN81: 14 mm narrowerN81: 50 mm · Aquos R2 compact: 64 mm
Screen diagonalN81: 2.8 in smaller diagonalN81: 2.4 in · Aquos R2 compact: 5.2 in
DepthAquos R2 compact: 8.6 mm thinnerAquos R2 compact: 9.3 mm · N81: 17.9 mm
HeightN81: 29 mm shorterN81: 102 mm · Aquos R2 compact: 131 mm
Release year2007 / 2018N81: 2007 · Aquos R2 compact: 2018

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. N81
Height
102 mm
Width
50 mm
Depth
17.9 mm

Weight
140 g
2. Aquos R2 compact
Height
131 mm
Width
64 mm
Depth
9.3 mm

Weight
135 g

Specifications

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Everyday essentials

Everyday essentials
Specification	N81	Aquos R2 compact
Dimensions (HxWxD)	102 Х 50 Х 17.9 mm	131 Х 64 Х 9.3 mm
Weight	140 g	135 g
Technology	TFT	IGZO IPS LCD
Screen size	2.4" inch	5.2" inch
Screen resolution	240 x 320 px	1080 x 2280 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	12 MB 96 MB RAM	64 GB 512GB 4GB
Memory card support	microSD up to 8 GB (dedicated slot) 2 GB included	microSD up to 512 GB
BatteryCapacity is not battery life. No endurance test is implied.	1050 mAh Removable Li-Po	2500 mAh Non-removable Li-Ion
Operating system OS	Symbian OS 9.2 Series 60 v3.1 UI	Android 9.0 (Pie)
Chipset	Unknown	Qualcomm SDM845 Snapdragon 845 (10 nm)
NFC	Unknown	Yes
Headphone jack	Yes	Yes

Display

Display
Specification	N81	Aquos R2 compact
Touchscreen	Unknown	capacitive touchscreen
Display colors	16M	16M
Screen area	17.8 cm2	67.5 cm2
Screen format	4:3 (height:width)	19:9 (height:width)
Screen to body ratio	35.0%	80.5%
PPI /points per inch/	167 PPI	485 PPI
Screen protection	Unknown	Corning Gorilla Glass 3

Camera and Video

Camera and Video
Specification	N81	Aquos R2 compact
Rear camera, main	2 MP Single	22.6 MP Single
Camera specs	2 MP	22.6 MP f/1.9 22 mm PDAF OIS
Functions	LED flash	LED flash HDR panorama
Video	320p@15fps	1080p@30fps
Front camera, selfie	0.3 MP Single	8 MP Single
Specifications	CIF videocall camera	8 MP f/2.2 23 mm

Performance

Performance
Specification	N81	Aquos R2 compact
Processor CPU	369 MHz ARM 11	Octa-core (4x2.6 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver)
Graphics processor GPU	Unknown	Adreno 630

General specs

General specs
Specification	N81	Aquos R2 compact
Release date	2007 August	2018 November
Colors	Cobalt blue Graphite Grey	Smokey Green Deep White Pure Black
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.	200 EUR	Unknown
Battery life	Stand by time- Up to 410 h Talking time- Up to 4 h (2G) / 3 h (3G)	Unknown
Body build	Unknown	Front glass aluminum frame plastic back

Communication and Connectivity

Communication and Connectivity
Specification	N81	Aquos R2 compact
SIM card	Mini-SIM	Nano-SIM
Network	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 2100 -4G - LTE
Speed	Yes 384 kbps	HSPA LTE
GPRS	Class 10	Yes
Edge	Yes	Yes
Wi-Fi	Wi-Fi 802.11b/g with UPnP	Wi-Fi 802.11 a/b/g/n/ac dual-band WiFi Direct hotspot
GPS	No	Yes with A-GPS GLONASS GALILEO QZSS
USB	microUSB 2.0	2.0 Type-C 1.0 reversible connector (PowerDelivery 2.0)
Bluetooth	2.0 A2DP	5.0 A2DP LE
Harmful irradiation	SAR - 0.73 W/kg (head) 0.60 W/kg (body) SAR EU - 0.81 W/kg (head)	Unknown

Music and Audio

Music and Audio
Specification	N81	Aquos R2 compact
Radio	Stereo FM radio	No
Others	Touch-sensitive Navi wheel	120 Hz -HDR10 -DCI-P3 Active noise cancellation with dedicated mic -Dolby Vision & Dolby Atmos -24-bit/192kHz audio

Other features

Other features
Specification	N81	Aquos R2 compact
Dop	MP3/AAC/MP4 player -Predictive text input -Push to talk -Voice dial/memo -Organizer	Sensors Fingerprint (front-mounted) accelerometer gyro proximity compass - Fast battery charging - IP68 dust/water proof (up to 1.5m for 30 mins)