A

• Android (operating system)(8 C, 92 P, 3 F)

C

• CyanogenMod(5 P)

F

• Firefox OS(2 C, 7 P)

K

• KaiOS(1 C, 1 P)

M

• Maemo(1 C, 2 P)
• MeeGo(1 C, 4 P)

O

• Openmoko(5 P)

• Linux for mobile devices

A

• Access Linux Platform
• Alcatel One Touch Fire
• AliOS
• Android (operating system)
• Android software development
• AOKP
• Aurora OS (Russian Open mobile platform)

B

• Baidu Yi
• BharOS

C

• CalyxOS
• ColorOS
• Comparison of open-source mobile phones
• CopperheadOS
• COS (operating system)
• CyanogenMod

D

• DivestOS

E

• EMUI
• EncroChat

F

• Firefox OS

G

• GeeksPhone Keon
• GeeksPhone Peak
• GeeksPhone Revolution
• GrapheneOS

H

• Hive UI
• Honor (brand)

I

• IodéOS

K

• KaiOS

L

• Librem 5
• Linux Phone Standards Forum
• LuneOS

M

• Maliit
• MIUI
• MOAP
• Mobian
• Mobilinux
• Moblin

N

• Necuno
• Nokia N900

O

• OFono
• List of open-source mobile phones
• OpenELEC
• OPhone

P

• Phosh
• PinePhone
• PostmarketOS
• PureOS

Q

• Qt Extended

R

• Replicant (operating system)

S

• Sailfish OS
• Samsung Galaxy (2009 smartphone)
• SlimRoms
• SmartQ 5

T

• Tizen
• Tizen Association

U

• Ubuntu Touch

W

• WebOS

X

• Xiaomi HyperOS