HP Prime

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HP Prime Graphing Calculator
HP prime front picture.png
The HP Prime calculator
Type Graphing
Manufacturer HP
Release September 2013
Latest OS ?
Input method RPN, Textbook, Infix
Precision 12
Screen type 16-bit Color, multitouch TFT
Screen size 320x240px ; 3.5"
Processor ARM9 (Samsung S3C2416)
Frequency 400 MHz max
Language(s) Available HP-Basic
RAM Memory 32 MB
ROM Memory 256 MB
Connection Micro-USB
Battery Li-Ion Rechargeable battery
Mass 228g
Dimensions 182 x 85.8 x 139 mm
Price ~ 155€
Discovered Late March 2013

The HP Prime is a CAS-capable graphing galculator from HP announced in 2013 and released in September of that year.
It features a 3.5", 16-bit color, multi-touch, TFT screen with a 320x240px resolution.

Software side


  • Algebraic/Symbolic/Numeric functions
  • Dynamic geometry
  • Advanced graphing

The CAS is based on the open-source XCas engine, a powerful and advanced one, made to operate more like Maple, MATLAB, Mathematica, as opposed to something like the Nspire's CAS, which is made to be easy.[1]

Linking Protocol

Firmware files

OS version history

  • Pre-releases versions (from leak(s) and testers) : from rev. 3xxx to 5106

File format


None yet.

Hardware Side

HP Prime Hardware
HP Prime Hardware


These have been found on the DVT prototype models[2]. Production models may have different components.

  • Screen: Multi-Touch Color Display 3.5" diagonal with a resolution of 320x240px
  • Processor (U101): Samsung S3C2416XH-40 - ARM9 (core: ARM926EJ-S) clocked at 400 MHz maximum.
  • RAM Memory (U200): Hynix H5MS2562NFR - 32 MB
  • Flash Memory (U201): Samsung K9F2G08U0C-SCB0 - 256 MB
  • Battery: Li-Ion 3.7V, 1500 mAh (5.55Wh)

Hardware Revisions

  1. Early / First (known) revisions (prototype):
    • The calculator was named "HP Advanced Graphing Calculator"
    • The back color is white
    • The D-Pad was silver-colored
  2. DVT Prototypes:
    • The calculator gets the name "HP Prime Graphing Calculator"
    • The D-Pad gets black-colored
  3. Production models :
    • The calculator gets its back color changed to Black.


About half of the RAM (~ 16MB) is taken up by the OS, the other half is free.[1]


  • Very compatible with the HP 39Gii's BASIC. (mostly additions and fixes)
  • Lists are array pointers.[1]
  • Objects work through reference counters. You can have a single object reference in many places - it could be hardcoded in the main memory, or a user object on the home screen, or a variable.[1]
  • All characters are UTF16.[1]
  • Once exported, functions act like they are built in.
  • The advanced grapher uses interval based math, and cannot be mixed with user functions.[1]


No native (C/ASM...) programming capabilities are offered by default.


HP provides a free Windows software (runs in Wine on other platforms, but with pausing and BLIT issues) reproducing the handheld behaviour.
It is not a emulator, but a simulator (the codebase has been recompiled for Windows).[3]
It's estimated to run between 5 and 10 times faster than the handheld depending on the application. [4]


On the market

The HP Prime is mostly sold online, on multiple specialized and general shops.

See Also


  1. 1.0 1.1 1.2 1.3 1.4 1.5 'tw_hpcalc' (Tim Wessman, HP) - Aug. 08/09, 2013 on Omnimaga's IRC chat
  2. Source : http://tiplanet.org/forum/viewtopic.php?f=55&t=12821&lang=en
  3. Tim Wessman, 30 July 2013, 9:42 p.m. - On HP-Museum
  4. Personal experiments show the software is up to 10x faster for graphing advanced plots in the demo gallery

External links