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Note: Frequency response is from 20Hz to 20kHz

  • Deep Bass: 20-40Hz  – none
  • Middle Bass: 40-100Hz – none
  • High Bass: 100 to 200Hz – none
  • Low-mids: 200-400Hz – none
  • Mids: 400-1000Hz – building
  • High-mids: 1-2kHz – building
  • Low-treble: 2-4kHz – flat
  • Treble: 4-6kHz – declining
  • High Treble: 6-10kHz – declining
  • Dog whistle: 10-20kHz – none
Sound signature

This is a ‘tinny’ analytical signature, way too harsh for music pleasure.

Battery

Battery 4050 mAh battery (reported as 3950)
Charger Charger type: 5V/2A (10W) USB-C
Quick Charge: Supports 5V/3A and 9V/2A (18W) with optional charger

Our test software indicates a 3950mAh battery – that is not so much of an issue as batteries are typically rated at nominal capacity.

Recharge with the standard 5V/2A charger from 0-100% takes under four hours. This is a little slower than the claimed 2.5 hours but acceptable. PS: Mintt please let your markets know that 5V/2A is not ‘quick charging’.

If you buy am 18W USB-PD 2.0 charger, you can get 50% in 45 minutes and the remainder in around two hours.

Battery Tests:

  • 1080p Video loop: 50% brightness, Airplane mode – 9 hours (this is an estimate extrapolated from two hours use)
  • Heavy use: screen on time –  6 hours (ditto)
  • GFX Bench T-Rex test: 7.53 hours

Summary: The battery is large for this class of device. We expect it to go 24-36 hours under typical use.

Build and more

Colours Cobalt
Build Painted plastic polycarbonate over synthetic frame.
Slippery – use the bumper case
Dimensions 155.4 x 71.8 x 8.1mmx 175.8g
IP Rating Nil
Warranty 2-years Australia Post swap warranty
SAR  Not provided and not listed on its website; however, the Blu G9 has stringent US FCC certification that requires SAR levels. This is .61 W/kg head and .34 W/kg body and is significantly under the maximum regulated SAR levels.    

It is well made, no gaps and no #bendgate. The 2-year swap warranty via Australia-post is good. Although in practice you first send your phone back for a quick assessment and if it is a warranty claim (not user caused) a replacement is immediately sent. We understand that the process takes less than a week. Mintt claims a .05% failure rate – that is excellent.

Mintt does not have many accessories. You can buy a Pleather flip case for $29, and you can buy Blu G9 accessories at most online markets.

Other

Security Fingerprint sensor on the rear (registers multiple fingers)
2D Face Unlock

The fingerprint reader is reliable and fast.

The 2D facial recognition is slow and mostly unusable in all but good light as there is no LCD fill or IR. You can only register one face despite multiple account capability.

Operating system

OS Android: Google Android 9.0
UI: Pure Android
Supports multiple users
Google Google Lens
Google Assistant
All Google apps
Security Patch
At the time of review
5 June 2019

The Ultramintt X3 will receive an Android 10 upgrade when available. The security patch is two steps behind – most Android phones should have August by now.

Transfer from other devices

As it is pure Google Android, you need to back up your old device to Google Cloud, and it will reinstall most apps and data to the new device.

 What is missing

Missing Notification LED
IP rating

At $265 neither are deal-breakers. You could be picky and ask for an 18W fast charger in the box, but hey, that probably saves $20!

Camera – Mintt UltraMintt X3

Mintt UltraMIntt X3  CAMERA
Rear Camera 1
Main
Sony IMX214 BGGR
13MP
5P lens
f/2.0
1.12um
67.8°
Stabilisation: EIS from Helio E22
Focus type: PDAF
HDR: manual – select on or off
Zoom: 4X digital
AI: scene recognition
Flash type: Single LED
Images: Raw or JPEG
Video: 1920 x 1080 [email protected]
Google Lens: Yes
Rear Camera 2
Depth
SK Hynix YCAD5C1S or OmniVision OV2680 depth camera
2MP
f/2.4
1.75um
71.9°
RAW/JPEG
Fixed Focus
Selfie 1 Sensor: Could not detect
8MP
1.12um (1.14)
F/2.0
62.8°
Fixed focus
EIS
Face Detect: Simple 2D No flash

Why the detail?

Its is vital for us to know the sensor brand and model so we can compare it to others using the same sensors – a benchmark that allows us to assess post-processing and lens quality as well.

The Sony IMX214 is an old BSI sensor from October 2014. It was popular in 2015 on premium phones like the Moto Z, HTC One M9, Huawei Mate 7 etc. Today it is a low-cost 13MP sensor and not with the latest smarts.