HardwareRequirements¶

Android versions¶

Android version	4.2	6.0	9.0	Notes
RAM	340M1	424M2	512M3	It also depends on the display resolution and size: On android 9, it can go up to 1824MB on 64bit ARM with very high dpi and resolutions
/data partition			4 GB	It might also be possible to use external storage for that

¹ android-4.2-cdd.pdf

² android-6.0-cdd.pdf

³ android-9-cdd.pdf and html version

Android 9.0 compatibility¶

Device	RAM	Display
Samsung Galaxy SII (i9100)	OK: * Has 1GB and an HDPI display9 * 512M required for 280dpi or lower on small/normal screens*	HDPI1: 480x800 233 ppi9
Samsung Galaxy SIII (i9300)	OK: * Has 1GB * 608MB required for XDPI	XDPI1: 720×1280 306ppi2
Samsung Galaxy SIII 4G (i9305)	OK: * Has 2GB * 608MB required for XDPI
Goldelico GTA04 A3	May be or may not be OK: * The A34 and A45 have 512MB of RAM * 608MB required for xdpi but the resolution is very small	XDPI1: 480×640 282ppi2
Goldelico GTA04 A4
Goldelico GTA04 A5	OK?: * The A56 may have 1G of RAM * 608MB required for xdpi
LG Optimus black (p970)	OK: * 512M * small screens with 280dpi or less	HDPI1: 480×800 233ppi3
Amazon Kindle Fire first generation	OK: * 512M7 * mdpi or lower on large screens	mdpi: 1024×600 at 169 ppi8

¹ https://en.wikipedia.org/wiki/Pixel_density#Named_pixel_densities

² https://en.wikipedia.org/wiki/Galaxy_SIII

³ https://en.wikipedia.org/wiki/LG_Optimus_Black

⁴ http://projects.goldelico.com/p/gta04-main/downloads/get/GTA04A3-1-complete.pdf

⁵ http://projects.goldelico.com/p/gta04-main/downloads/get/GTA04A4-3_System_Manual_Complete.pdf

⁶ http://git.goldelico.com/?p=letux-uboot.git;a=blob;f=board/goldelico/letux-gta04/gta04.c;h=258b2be62904d98639a9a92afc2ede793685eb4c;hb=refs/heads/master#l228

⁷ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm/boot/dts/omap4-kc1.dts#n16

⁸ https://en.wikipedia.org/wiki/Kindle_Fire

⁹ https://en.wikipedia.org/wiki/Galaxy_S

Source code and configuration¶

Android can be configured to use less hardware resources. Here are some links on the topic:

• Low RAM switch - ro.config.low_ram
• Links to Android Go Optimizations that exist for AOSP 8 and AOSP 9 (Some or all of these optimizations might be a bad trade off if they optimize RAM at the expense of CPU power since the CPU in Replicant is used to render graphics)