n810:

BusyBox v1.6.1 (2008-09-18 09:43:17 EEST) Built-in shell (ash)
Enter 'help' for a list of built-in commands.

~ $ uptime
18:40:44 up 126 days, 10:37, load average: 0.05, 0.01, 0.00
~ $

n800:
[1|user@Nokia-N800-43-7|~]uptime
18:40:53 up 31 days, 21:34, load average: 0.08, 0.01, 0.00
[1|user@Nokia-N800-43-7|~]