Smartphone And Tablet Energy Consumption

Team Faculty Member: Dr. Veton Këpuska

Students: Guinevere Shaw, Salvador Macaraig, Jordan Arnold and Christopher

KovalikTeam Advisor: Paul Karaffa

FaST Team:

• What are the energy saving benefits:o The convergence of consumer products into one

device such as a Smart phones or tablets vs. single-function products, and

o how are they changing the consumptive

behavior of humans?

The Project

• To investigate the battery consumption of smartphones and tablets using different applications.

• To compare popular applications to relevant stand-alone devices in the market today (portable gaming, scanning, music players, etc. )

• To compare applications and smartphone devices among each other

Project Overview

• iOS (Apple)

• Blackberry (RIM)

• Android (Google)

• Windows Phone 7

(Microsoft)

Operating Systems

• iPhone 4

• iPad 2

• Samsung Galaxy S

Phone

• Samsung Galaxy

Tablet

• Samsung Focus

• Blackberry Curve

9300

Phones and Tablets Tested:

PhoneTest

Samsung Galaxy S Phone

Samsung Galaxy

Tab

Samsung

Focus

iPhone 4

iPad 2

Blackberry Curve

Percentage of battery Remaining

X X X X X XBattery Temperature X X X XBattery Voltage X X X

Measurements Provided By OS

Results using Software Measurements

Units Samsung Focus

Samsung Galaxy

Black-berry Iphone 4

Galaxy Tablet Ipad 2

[V] 3.7 3.7 3.7 3.7 3.7 3.7

[Wh] 5.55 5.55 4.3 5.25 14.8 25

[mAh] 1500 1500 1150 1420 4000 4400

Battery Information

Non-Intrusive Tests

Windows 7 Focus

Galaxy S Phone

Blackberry Curve 9300

iPhone4

Galaxy Tab

iPad2

Phon

esTa

blet

s

-1.6 -1.4 -1.2 -1 -0.8 -0.6 -0.4 -0.2 0

Average Relative Non-Intrusive Energy Consumption of SmartPhones and Tablets

Average [%] Drop of Energy Accros all Applicable Applications

Non-Intrusive Tests

Windows 7 Focus

Galaxy S Phone

Blackberry Curve 9300

iPhone4

Galaxy Tab

iPad2

Phon

esTa

blet

s

-0.3 -0.25 -0.2 -0.15 -0.1 -0.05 0

Average Capacity Drop [Wh]

[Wh]

Questions?