The centerpiece of the Huawei Mate 20 X is that 7.2" AMOLED screen with a tiny waterdrop-like notch. Despite the large diagonal, the display has a resolution of 1,080 x 2,244 pixels or 346ppi. That's far from a top-notch pixel density, but still enough for both a daily driver and a multimedia device.
In fact, the 1080p screen of the Mate 20 X should be ideal for gaming, which is one of the key selling points of the phablet. It should allow for great app compatibility and top performance with the Kirin 980 powerhouse underneath.
The OLED panel has a Diamond PenTile matrix, like most of the OLEDs these days. If you stare long enough and at the proper content (text mostly), you might be able to tell it's a PenTile from the rough edges, but that's about the only time, really.
The screen of the Mate 20 X has two Color modes - Normal and Vivid. Each of those also has three sub-modes - Default, Warm, and Cold.
The Vivid option represents the DCI-P3 color space, while the Normal one switches to sRGB color space compliance. Huawei hasn't specified this anywhere, so we found that out empirically in our lab.
Anyway, the Mate 20 X comes set on Vivid by default and we suggest leaving it this way. The mode offers 460 nits of (manual) maximum brightness, but it can go as high as 655 nits in bright light if you leave it on Auto.
The minimum brightness we measured is just 1.8 nits.
Display test
100% brightness
Black, cd/m2
White, cd/m2
Contrast ratio
Huawei Mate 20 X
0
459
∞
Huawei Mate 20 X (Max Auto)
0
655
∞
Huawei Mate 20 Pro
0.002
508
254000
Huawei Mate 20 Pro (Max Auto)
0.003
657
219000
Huawei Mate 20
0.347
491
1415
Huawei Mate 20 (Max Auto)
0.554
778
1404
Huawei Mate 20 Lite
0.313
460
1470
Huawei P20 Pro
0
412
∞
Huawei P20 Pro (Max Auto)
0
582
∞
Apple iPhone XS Max
0
653
∞
Samsung Galaxy Note9
0
367
∞
Samsung Galaxy Note9 (Max Auto)
0
658
∞
LG V40 ThinQ
0.002
323
161500
LG V40 ThinQ (Max Auto)
0.008
638
79750
Xiaomi Mi Mix 3
0
445
∞
Xiaomi Mi Mix 3 (Max Auto)
0
633
∞
Xiaomi Mi Max 3
0.339
496
1462
Sony Xperia XZ2 Premium
0.367
518
1411
The average deltaE we measured for the screen on Vivid is 4.4 with a maximum deviation of 7.8, which is not the best accuracy, but fine enough. You can fix the bluish whites by switching to Warm color temperature, but the overall accuracy won't improve by much.
The color accuracy for the Normal (sRGB) mode is better though with an average deltaE of 2.4 and a maximum deviation of 4.
The sunlight contrast on the Huawei Mate 20 X is excellent, but we expected nothing less from an AMOLED screen.
Sunlight contrast ratio
Apple iPhone XS 5.171
Apple iPhone X 5.013
Huawei Mate 20 Pro 4.965
OnePlus 5T 4.789
Samsung Galaxy S8 4.768
Asus ROG Phone 4.765
Samsung Galaxy S8+ 4.658
Samsung Galaxy S9 4.63
Samsung Galaxy S6 edge+ 4.615
Samsung Galaxy S9+ 4.537
Samsung Galaxy Note9 4.531
Apple iPhone XS Max 4.516
Sony Xperia XZ3 4.502
Motorola Moto Z2 Play 4.459
Oppo R11 4.454
Samsung Galaxy S7 edge 4.439
Oppo RX17 Pro 4.434
OnePlus 3 4.424
Samsung Galaxy S7 4.376
Google Pixel 3 4.35
Huawei Mate 20 X 4.337
Samsung Galaxy A7 (2018) 4.324
OnePlus 6 4.321
Xiaomi Mi Mix 3 4.291
vivo NEX Dual Display (second display) 4.289
HTC One A9 4.274
LG V40 ThinQ 4.256
Oppo R15 Pro 4.251
Samsung Galaxy Note7 4.247
Samsung Galaxy A3 4.241
Nokia 8 4.239
Google Pixel 2 XL (pre-update) 4.234
OnePlus 3T 4.232
Samsung Galaxy A9 (2018) 4.22
Google Pixel XL 4.164
ZTE Axon 7 4.154
Samsung Galaxy Note8 4.148
Meizu Pro 7 Plus 4.147
OnePlus 6T 4.138
Samsung Galaxy S6 edge 4.124
Samsung Galaxy A7 (2017) 4.124
vivo V11 4.113
vivo NEX Dual Display 4.108
Huawei Mate 10 Pro (normal) 4.096
Samsung Galaxy Note5 4.09
Huawei P20 Pro 4.087
Xiaomi Mi 8 4.086
Meizu 15 4.082
Nokia 6 (2018) 4.052
Google Pixel 2 (pre-update) 4.023
LG V30 4.022
Huawei Nexus 6P 4.019
vivo NEX S 4.012
Honor Magic 2 4.01
Samsung Galaxy J7 Pro 3.998
OnePlus X 3.983
Vivo Xplay5 Elite 3.983
LG G7 ThinQ (outdoor) 3.978
Oppo R7s 3.964
Apple iPhone 7 3.964
Apple iPhone 8 (True Tone) 3.957
Huawei P9 Plus 3.956
Oppo Find X 3.954
Meizu Pro 6 Plus 3.935
Lenovo Moto Z 3.931
Samsung Galaxy A7 (2016) 3.918
OnePlus 5 3.914
Samsung Galaxy C5 3.911
Xiaomi Mi 8 SE 3.901
Motorola Moto G6 Plus 3.865
Samsung Galaxy A8 3.859
Samsung Galaxy A8 (2018) 3.842
Apple iPhone 6 3.838
Microsoft Lumia 950XL 3.837
Samsung Galaxy A6+ (2018) 3.834
Sony Xperia XZs 3.818
Samsung Galaxy A9 (2016) 3.817
Motorola Moto X (2014) 3.816
Samsung Galaxy J7 (2017) 3.812
Samsung Galaxy A5 (2017) 3.804
Samsung Galaxy J7 (2016) outdoor mode 3.802
Xiaomi Redmi Pro 3.798
LG V20 Max auto 3.798
Sony Xperia XZ 3.795
Samsung Galaxy A5 (2016) 3.789
Apple iPhone 6s 3.783
Meizu Pro 5 3.781
Microsoft Lumia 650 3.772
Xiaomi Mi 6 3.767
Sony Xperia XZ1 3.765
Samsung Galaxy J7 (2016) 3.756
Nokia 8 Sirocco 3.745
Sony Xperia XZ1 Compact 3.729
Apple iPhone 8 Plus (True Tone) 3.725
Samsung Galaxy A3 (2017) 3.688
Huawei P20 3.683
Apple iPhone SE 3.681
Huawei Mate 9 3.68
Samsung Galaxy A7 3.679
Sony Xperia XZ2 Compact 3.675
Meizu PRO 6 3.659
BlackBerry Priv 3.645
Sony Xperia XA1 Ultra 3.597
Huawei Honor View 20 3.597
Apple iPhone 7 Plus 3.588
Acer Jade Primo 3.521
Microsoft Lumia 950 3.512
Oppo R7 Plus 3.499
Nokia 7 plus 3.479
nubia Z11 3.466
Huawei P10 Plus 3.456
HTC U Ultra 3.453
Motorola Moto G6 3.448
Sony Xperia XA2 Ultra 3.445
Sony Xperia XA2 Plus 3.445
Samsung Galaxy J7 3.422
Motorola Moto G6 Play 3.419
Meizu MX5 3.416
LG V20 3.402
Samsung Galaxy A6 (2018) 3.397
Xiaomi Redmi Note 5 AI Dual Camera 3.393
LG G7 ThinQ 3.39
Huawei P10 3.379
Honor Play 3.349
Nokia 5 3.261
Nokia 6 (Chinese version) 3.244
Xiaomi Mi 5 3.24
Nokia 6 (Global version) 3.238
Samsung Galaxy J2 3.235
Oppo Realme 2 Pro 3.235
Huawei Mate 9 Pro 3.206
Huawei P9 3.195
Xiaomi Mi Mix 2 3.19
ZTE Nubia Z17 3.159
Oppo R11s 3.153
Lenovo Vibe Shot 3.113
Honor 8X 3.113
HTC U11 Life 3.108
Motorola Moto X Force 3.105
LG Nexus 5X 3.092
HTC U11 3.089
Xiaomi Mi A2 Lite 3.087
HTC U12+ 3.085
Xiaomi Redmi S2 (Y2) 3.077
Huawei Mate S 3.073
Oppo F9 3.069
Huawei P Smart 2019 3.069
Microsoft Lumia 640 XL 3.065
Xiaomi Mi Max 3 3.061
Xiaomi Pocophone F1 3.059
Huawei Mate 20 3.052
Huawei Mate 20 Lite 3.051
Motorola One (P30 Play) 3.026
Apple iPhone 6 Plus 3.023
Asus Zenfone 4 ZE554KL 3.019
Sony Xperia XA1 3.012
Motorola Moto X4 3.012
Oppo Realme 2 3.006
Sony Xperia L1 2.994
Sony Xperia X 2.989
LG Q6 2.987
Huawei P10 Lite 2.974
Samsung Galaxy Note 2.97
Xiaomi Redmi Note 6 Pro 2.966
Huawei P20 Lite 2.952
Xiaomi Redmi 5 2.951
Huawei Mate 8 2.949
Sony Xperia XA2 2.938
Oppo Realme 1 2.932
Razer Phone 2 2.932
Xiaomi Redmi 4 2.92
Xiaomi Redmi 3S 2.913
Xiaomi Redmi 5 Plus 2.913
Sony Xperia XA Ultra 2.906
LG G5 2.905
Huawei Honor View 10 2.896
Xiaomi Redmi 3s Prime 2.893
Xiaomi Redmi Note 7 2.893
Xiaomi Mi 5s Plus 2.884
Sony Xperia XZ Premium (sRGB) 2.877
Sony Xperia XZ Premium 2.877
Sony Xperia Z5 2.876
Nokia 3 2.871
Sony Xperia XZ2 Premium 2.867
Xiaomi Mi 8 Lite 2.862
Microsoft Lumia 550 2.851
Nokia 3.1 2.837
Realme U1 2.815
Lenovo Moto M 2.813
Nokia 7.1 2.804
Xiaomi Redmi 3 Pro 2.803
Sony Xperia Z5 compact 2.784
Honor 10 (Vivid) 2.757
Nokia 2 2.752
Meizu MX6 2.751
LG V10 2.744
Huawei Mate 10 (normal) 2.742
Huawei Honor 7X 2.734
Xiaomi Redmi Note 4 (S625) 2.714
Meizu M5 2.71
Xiaomi Mi A2 2.696
Sony Xperia M5 2.69
Xiaomi Mi A1 2.689
Huawei P9 Lite 2.679
Xiaomi Redmi 4 Prime 2.679
vivo V7+ 2.671
Vivo V3Max 2.659
Xiaomi Mi Mix 2.658
Huawei Mate 10 Lite 2.654
Huawei P Smart 2.563
Xiaomi Mi Max 2 2.561
HTC U11+ 2.556
Xiaomi Redmi Note 5A (Y1) 2.556
Lenovo Moto G4 2.544
Lenovo K6 Note 2.544
Oppo F1 2.528
Sony Xperia Z5 Premium 2.525
Huawei Honor 7 Lite / Honor 5c 2.506
Sony Xperia M4 Aqua 2.503
Huawei Honor 10 Lite 2.497
Huawei Honor 7 2.406
Vivo V7 2.404
Sony Xperia E5 2.386
ZUK Z1 by Lenovo 2.382
HTC 10 2.378
Oppo F3 2.376
vivo V5 Plus 2.371
Meizu m1 note 2.362
Huawei nova plus 2.329
Razer Phone 2.328
HTC One E9+ 2.305
Alcatel One Touch Hero 2.272
Apple iPhone 4S 2.269
Sony Xperia L2 2.266
Lenovo Vibe K4 Note 2.254
Sony Xperia C5 Ultra 2.253
HTC U11+ (EU) 2.253
LG Aka 2.145
Xiaomi Redmi Note 4 (X20) 2.145
Archos 50 Diamond 2.134
Xiaomi Redmi Note 2.119
Xiaomi Mi 4S 2.095
Acer Liquid X2 2.084
Huawei P8lite 2.078
vivo V5 2.059
Moto G 3rd gen max manual 2.026
Xiaomi Mi 3 2.001
Xiaomi Mi Max 1.996
Battery life
The Huawei Mate 20 X is powered by a very large 5,000 mAh battery. The Mate 20 X supports the company's proprietary SuperCharge at 5V and 4.5A. The required cable and charger are bundled with the X and they can fill 47% of a depleted battery in half an hour and reach 100% in about 100 mins.
There is no wireless charging support on the Mate 20 X. That, and the 40W Super Charge support, are reserved for the Mate 20 Pro.
In our testing, the Mate 20 X lasted about 18 hours looping videos and north of 15 hours running our web browsing script. The 3G voice call test returned a 29h talk time.
The overall Endurance rating ended up 108 hours - the best among the three Mate 20 devices we've tested. While the standalone tests are in line with the rest of the gang, the larger battery helped for a better standby endurance and thus the higher battery rating.
Our battery tests were automated thanks to SmartViser, using its viSer App. The endurance rating above denotes how long a single battery charge will last you if you use the Huawei Mate 20 X for an hour each of telephony, web browsing, and video playback daily. We've established this usage pattern so that our battery results are comparable across devices in the most common day-to-day tasks. The battery testing procedure is described in detail in case you're interested in the nitty-gritty. You can check out our complete battery test table, where you can see how all of the smartphones we've tested will compare under your own typical use.
Speaker test (old, new one below)
The Mate 20 X has stereo speakers, but not the one-real-one-pseudo type we've seen on many P and Mate phones lately. No, Huawei has opted for the real deal on the Mate 20 X - true identically large speakers - one at the top and another one at the bottom. And the earpiece is just that - an earpiece.
The maker has improved its speaker game. Both speakers sound equally loud, with deep bass and overall rich output. In fact, we played a music track on all three Mates, the P20 Pro, the iPhone XS, and iPhone X, and the Mate 20 X sounded much better than all of rest.
And after all this praise it shouldn't be a surprise that the Mate 20 X speakers scored an Excellent mark in our loudspeaker test.
Speakerphone test
Voice, dB
Pink noise/ Music, dB
Ringing phone, dB
Overall score
Xiaomi Mi Max
67.1
66.2
68.1
Average
Xiaomi Mi Mix 3
67.9
71.6
73.7
Good
Sony Xperia XZ2 Premium
68.1
73.2
73.7
Good
Huawei Mate 20 Lite
67.8
70.0
84.2
Very Good
Xiaomi Mi Max 3
68.5
71.6
83.6
Very Good
Huawei Mate 20
74.3
70.2
82.6
Very Good
Oppo Find X
70.7
75.2
81.2
Very Good
Huawei Mate 20 Pro
70.3
73.4
83.8
Very Good
Huawei Mate 10 Pro
70.1
73.8
84.2
Excellent
Apple iPhone XS Max
70.5
74.0
84.7
Excellent
Sony Xperia XZ3
71.0
75.4
82.9
Excellent
Huawei P20 Pro
71.8
69.2
91.0
Excellent
Huawei Mate 20 X
71.4
73.5
91.1
Excellent
Asus ROG Phone
79.0
77.5
84.9
Excellent
Razer Phone 2
78.2
78.8
86.9
Excellent
Huawei Mate 10
90.6
73.7
84.0
Excellent
Speaker test (new)
Use the Playback controls to listen to the phone sample recordings (best use headphones). We measure the average loudness of the speakers in LUFS. A lower absolute value means a louder sound. A look at the frequency response chart will tell you how far off the ideal "0db" flat line is the reproduction of the bass, treble, and mid frequencies. You can add more phones to compare how they differ. The scores and ratings are not comparable with our older loudspeaker test. Learn more about how we test here.
Audio quality
Huawei Mate 20 X did well with an active external amplifier, outputting the test tracks with perfect accuracy and high volume.
It also handled headphones perfectly with a well-contained hike in stereo crosstalk the only notable change. Loudness remained well above average too, adding up to a very solid overall performance.
Test
Frequency
response
Noise
level
Dynamic
range
THD
IMD
+ Noise
Stereo
crosstalk
Huawei Mate 20 X
+0.02,
-0.03
-91.5
90.2
0.034
0.0092
-91.8
Huawei Mate 20 X
(headphones)
+0.04,
-0.04
-93.2
93.3
0.0038
0.056
-69.3
vivo NEX Dual Display Edition
+0.03,
-0.20
-94.0
94.0
0.0010
0.0066
-88.1
vivo NEX Dual Display Edition
(headphones)
+0.48,
-0.05
-92.7
92.7
0.0077
0.373
-54.9
Xiaomi Mi Mix 3
+0.02,
-0.02
-93.2
93.2
0.0014
0.072
-90.6
Xiaomi Mi Mix 3
(headphones)
+0.09,
-0.07
-92.7
92.6
0.0033
0.151
-60.9
Huawei Mate 20
+0.02,
-0.16
-92.1
92.0
0.0017
0.013
-85.6
Huawei Mate 20
(headphones)
+0.07,
-0.07
-92.1
92.4
0.0021
0.106
-66.5
Samsung Galaxy
Note9
+0.01,
-0.03
-93.7
93.7
0.0017
0.0074
-94.1
Samsung Galaxy Note9
(headphones)
+0.03,
-0.02
-93.6
93.5
0.0033
0.046
-93.2
Huawei Mate 20 X frequency response
You can learn more about the tested parameters and the whole testing
process here.
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