Only replace your devices when you really need to.
If still in good working condition, gift your device to a family member or friend.
Donate to a secondhand/charity shop.
On-sell it.
Apple NZ has a Renew Program which will recycle these e-waste items: computers, monitors, iPod and iPad devices, mobile phones and peripherals.
Apple e-waste recycling form - collections are booked through TechCollect NZ.
Please keep from landfill wherever possible.