OpenStream
New Zealand · broadband · Prices checked yesterday · 8 November 2026 · checked by hand

Mercury vs Slingshot broadband prices

Comparing the cheapest plan each has at the same speed, at 100 Mbps or better Mercury Unlimited FibreLite is $70 a month and Slingshot Unlimited $101, so Mercury is $31 a month cheaper; at 300 and 500 Mbps or better Mercury Unlimited FibreClassic is $99 a month and Slingshot Unlimited $101, so Mercury is $2 a month cheaper, on the ongoing price in New Zealand dollars, GST included, read from each retailer's own page on or after 2026-11-08.

Each band compares the cheapest plan of each retailer whose page states at least that speed; a plan whose page states no speed is not compared. Promotions are shown on each row and never ranked on.

Which fibre company serves your address?

Check whether fibre reaches your address, and who runs it.

Addresses from LINZ; fibre coverage from the Commerce Commission (CC BY 4.0).

The plans behind it

New Zealand broadband · read from each provider's own page on 2026-11-08, with the page linked on each row.

  1. 1.Mercury · Unlimited FibreLite
    $70 a month, ongoing
    106/25 Mbps (average peak speed) · measured 106 Mbps at peak (ComCom, October 2026)
    the page lists this under "Unlimited Fibre Broadband Bundle Plans": a price with Mercury electricity; broadband on its own is sold by phone and the page states no price for it; prices include GST and may change during the term
    Go to Mercury
  2. 2.Mercury · Unlimited FibreClassic
    $99 a month, ongoing
    509/112 Mbps (average peak speed) · measured 509 Mbps at peak (ComCom, October 2026)
    the page lists this under "Unlimited Fibre Broadband Bundle Plans": a price with Mercury electricity; broadband on its own is sold by phone and the page states no price for it; prices include GST and may change during the term
    Go to Mercury
  3. 3.Slingshot · Unlimited
    $101 a month, from, ongoing
    519/111 Mbps (average peak speed) · measured 519 Mbps at peak (ComCom, October 2026) · $91 $10 broadband discount for 12 months · minimum 12-month term
    unlimited data; modem not included, BYO or rent one for $5 a month ($14.95 postage); early termination fees up to $250; the page prices the plan "from"
    Go to Slingshot
Mercury plansSlingshot plansFibre of 100 Mbps or betterFibre of 300 Mbps or betterFibre of 500 Mbps or betterGigabit fibre

Related questions

Is Mercury or Slingshot faster?
On the tiers the Commerce Commission measured for both, Fibre 500: Mercury 509 Mbps and Slingshot (reported as 2degrees & Slingshot) 519 Mbps at peak (ComCom, October 2026).
Do Mercury and Slingshot have promotional prices?
Slingshot Unlimited: $91 $10 broadband discount for 12 months, then $101 a month. The comparison uses the ongoing price.

Where this comes from

Dated 2026-11-08. Nothing is estimated beyond arithmetic the page names, and no provider pays to appear.