Thanks 1eStar. Is that locked to Spark?

Would the Huawei E5786s-63a be the best model to buy for NZ unlocked for any network ?

http://www.store4g.com/huawei-e5786/

Huawei E5786 Specs

Network band:
Huawei E5786s-32a:
* Network mode: FDD/TDD/DC-HSPA+/HSPA+/HSPA/UMTS/GSM/GPRS/EDGE
* Inter-band CA : 1800 MHz(B3)+2600 MHz(B7), 1800MHz(B3)+800MHz(B20), 2600MHz(B7)+800MHz(B20)
* Intra-band CA: 2100MHz(B1)+2100MHz(B1),1800MHz(B3)+1800MHz(B3), 2600MHz(B7)+2600MHz(B7), 2600MHz(B38)+2600MHz(B38) * FDD 2600/2100/1800/900/850/800 MHz & TDD 2600 MHz
* DC-HSPA+/HSPA+/HSPA/UMTS: 2100/900 MHz
Huawei E5786s-62a:
Network mode: FDD/TDD/DC-HSPA+/HSPA+/HSPA/UMTS/GSM/GPRS/EDGE
* 4G CA 1800+700Mhz
* 4G FDD 2100/1800/900/700 MHz
* 3G DC-HSPA+/HSPA+/HSPA/UMTS: 2100/850 MHz
Huawei E5786s-63a:
* Network mode: FDD/TDD/DC-HSPA+/HSPA+/HSPA/UMTS/GSM/GPRS/EDGE
* FDD 2600/2100/1800/900/700 MHz, TDD 2300Mhz
* DC-HSPA+/HSPA+/HSPA/UMTS: 2100/900 MHz
* GSM/GPRS/EDGE 850/900/1800/1900 Mhz

I have the one for sale. "Huawei E585 Mobile (click for specs) Wifi / 3G access point 2degrees". It's from the 3 network in the UK, and it works perfectly on 2degrees - no idea if it'll work on others. It's not 4G, it's 3G, but it's fast enough for what I was doing, 7Mbps down, 5Mbps up. Charges on USB, comes with the rechargable battery but no charger. Frequencies

 

1. UMTS 900MHz
2. HSDPA 2100MHz
3. GSM 850MHz
4. EDGE 1800MHz

$50 and its yours, including a bit of credit on it, 1/4 the price of a new one. I used it for a couple of months is all.

Thanks for the offer timmmay. I'll keep researching at this stage. I'm hoping to connect it to my Blackvue/Cloud and send full HD over the interwebs

Ah yes, sending full HD you may want something faster.

1eStar: ideally a device that supported 700+1800+2300+2600 would be available. I'm not sure of all the band numbers maybe B28, B1, B40 and B41?

I believe it's 3, 7, 28 and 40 (but I'm not 100% sure).