Overzicht

• Android
• iOS/iPadOS
• WearOS
• Tizen
• WebOS
• chromeOS

Accu

Galaxy S21 specs

• Li-Ion 4000 mAh, non-removable
• Fast charging 25W
• Reverse wireless charging 4.5W

Touchscreen

In 2007, 93% of touchscreens shipped were resistive and only 4% were projected capacitance. In 2013, 3% of touchscreens shipped were resistive and 90% were projected capacitance.

Wi-Fi

3G

• 3G
• minstens 144kbps
• HSPA 14.4Mbps down, 5.76Mbps up
• HSPA+ 168Mbps down, 22Mbps up
• piek: 56Mbps downlink, 22Mbps uplink

4G

• 4G
• hoog mobiel: 100Mbps
• stationair: 1Gbps

5G

• 5G
• low-band: 30 tot 250Mbps
• mid-band: 100 tot 900Mbps

Resolutie video

• SD: 720x576 of 720x480 (480p)
• HD: 1280x720 (720p)
• FullHD: 1920x1080 (1080p)
• UHD: 3840x2160 (4k)

Bandbreedte Netflix

• Netflix SD: 3Mbps
• Netflix HD: 5Mbps
• Netflix UHD: 25Mbps

Bandbreedte YouTube

• SD 480p: 1.1Mbps
• HD 720p: 2.55Mbps
• HD 1080p: 5Mbps
• 4k: 20Mbps

LoRa

• LoRa
• 0.3kbps tot 27kbps
• Sidewalk
• Netwerk topologie
• Klassen

LoRa

• klasse A: aardbevingen, brand, overstroming, locatie-tracking
• klasse B: temperatuur meters
• klasse C: verkeerslichten