Series 4

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Psion models compared

previous | grid 2 of 13 - hardware - power and keyboard | next | up

machine

main batteries type

typical battery life

backup battery type

AC adapter port

calculator keypad

standard keys

application buttons

7

Li-Ion recharg.

8.5

lithium

Yes

No

?

?

Revo

NiMH recharg.

14

?

Yes

No

53

?

5mx Pro

AA

40

2032

Yes

No

53

9 and 5

5mx

AA

40

2032

Yes

No

53

9 and 5

3mx

AA

80

2025

Yes

No

58

9

5

AA

35

2032

Yes

No

53

9 and 5

3c (b)

AA

50

1620

Yes

No

58

9

3c

AA

70

1620

Yes

No

58

9

Siena

AAA

40

1620

No

Yes

68

8

3a

AA

80

1620

Yes

No

58

8

3a (512)

AA

80

1620

Yes

No

58

8

Notes:

  • Estimated hours of battery power in hours, where high memory models seem to require more power; actual hours will of course vary according to use, sound volume, backlight use, AC adapter use, saving to memory cards, etc.
  • AC adapter for the Series 3, 3a, 3c, and 3mx outputs 9v DC. The Series 5 adapter outputs 6v DC. The Revo uses a different type again. The Series 7 may also use a different type. Polarity is reversed between some machines. Do not interchange!
  • The Revo and Series 7 can be charged by their synchronization cradles.
  • The 3c and 3mx have an additional application button for Jotter program.
  • Series 5 and 5mx have 9 off-screen application quick access buttons and 5 command buttons to the left of the screen.
  • The Revo Nickel Metal Hydride (NiMH) batteries are AAA form and rechargeable but are not user serviceable.
  • The 3c (b) is the Series 3c backlit model, first introduced in North America.
  • The 3a (512) is an early generation Series 3a with 512KB RAM.
 

 

last edited on 28 November 1999