It you want thin, AMOLED is the way to go, and in the case of the vivo X5Max it's a 5.5-inch FullHD panel. That results in 401ppi, which is more than enough for sharp text.
The panel is a fine representative of the AMOLED tech and offers plenty of punch and wide viewing angles, though it does exhibit a greenish tint when viewed from the side.
There are no color adjustments to be found in settings, nor is there a glove mode.
Out microscope shot revealed the expected diamond pentile arrangement, with twice as many green subpixels as any other color.
The maximum brightness of the X5Max is good for an AMOLED, but more importantly it's higher than either of the Oppo models as well as the Samsung Galaxy A7. The 50% setting corresponds to about 30% of the maximum, nothing unseen before.
Display test
50% brightness
100% brightness
Black, cd/m2
White, cd/m2
Contrast ratio
Black, cd/m2
White, cd/m2
Contrast ratio
vivo Xshot
0.37
315
862
0.58
534
917
vivo X5Max
0
133
∞
0
432
∞
Oppo R5
0
238
∞
0
417
∞
Oppo R7
0
208
∞
0
362
∞
Samsung Galaxy A7
0
175
∞
0
349
∞
LG G Flex2
0
152
∞
0
398
∞
Meizu MX4 Pro
-
-
-
0.69
775
1127
Meizu MX4
-
-
-
0.63
594
947
Sony Xperia Z2
-
-
-
0.41
488
1195
Xiaomi Mi Note
0.09
130
1450
0.43
626
1453
Samsung Galaxy Note 4
0
291
∞
0
399
∞
In the sunlight test the X5Max posted an equally good mark, on par with the LG G Flex2, but somewhat behind the Galaxy A7 this time.
Sunlight contrast ratio
Nokia 808 PureView 4.698
Samsung Galaxy E7 4.485
Samsung Galaxy A3 4.241
Samsung Galaxy S6 4.124
Samsung Galaxy Note 4 4.033
Apple iPhone 5 3.997
Samsung Galaxy Note 3 3.997
Samsung Galaxy A5 3.895
Apple iPhone 6 3.838
Motorola Moto X (2014) 3.816
Samsung Galaxy Note Edge 3.799
Samsung Galaxy A7 3.679
Oppo R5 3.678
Samsung Galaxy K zoom 3.675
Nokia Lumia 930 3.567
Apple iPhone 5s 3.565
Samsung Galaxy S5 3.549
Nokia Lumia 735 3.547
Motorola Nexus 6 3.543
Alcatel Idol X+ 3.527
Apple iPhone 5c 3.512
Samsung Galaxy Alpha 3.509
Samsung Galaxy Note 3 Neo 3.487
vivo X5Max 3.472
LG G Flex2 3.465
YotaPhone 2 3.453
Motorola RAZR MAXX 3.42
Samsung I9300 Galaxy S III 3.419
Samsung Galaxy S5 Active 3.406
Nokia Lumia 925 3.402
Gionee Elife S5.5 3.386
Samsung I9505 Galaxy S4 3.352
Oppo R7 3.32
Samsung Omnia W 3.301
Samsung Galaxy S5 mini 3.174
Samsung I9000 Galaxy S 3.155
Samsung Ativ S 3.129
Samsung I9190 Galaxy S4 mini 3.127
Samsung Galaxy S4 zoom 3.118
Nokia N9 3.069
Microsoft Lumia 640 XL 3.065
Apple iPhone 6 Plus 3.023
Samsung Galaxy Note 2.97
Samsung Galaxy Premier 2.958
Sony Xperia Z1 2.95
HTC One S 2.901
Lenovo S90 Sisley 2.892
Samsung I8730 Galaxy Express 2.861
BlackBerry Q10 2.856
Samsung I9100 Galaxy S II 2.832
Sony Xperia Z3+ 2.824
HTC Desire Eye 2.815
Gionee Elife S5.1 2.812
Samsung Galaxy S II Plus 2.801
BlackBerry Z30 2.79
Meizu MX4 Pro 2.765
Sony Xperia ZR 2.672
Huawei Ascend P1 2.655
Xiaomi Mi 4i 2.641
Sony Xperia Z3 2.618
Sony Xperia Z3 Compact 2.616
Sony Xperia T3 2.609
BlackBerry Passport 2.595
Microsoft Lumia 640 2.563
Nokia Lumia 900 2.562
Motorola Moto G 4G 2.546
HTC One Max 2.537
Nokia Lumia 720 2.512
HTC One 2.504
Sony Xperia M4 Aqua 2.503
Motorola Moto G 2.477
vivo Xshot 2.465
Sony Xperia Z 2.462
Xiaomi Mi 4 2.424
Samsung Galaxy S III mini 2.422
Lenovo Vibe Z2 Pro 2.416
LG G Flex 2.407
HTC Desire 820 2.372
HTC One (M8) 2.371
Meizu MX4 2.366
Motorola RAZR i 2.366
Meizu m1 note 2.362
Sony Xperia ZL 2.352
HTC One M9 2.334
LG G4 2.317
Samsung Galaxy Note II 2.307
HTC One E9+ 2.305
HTC One (M8) for Windows 2.291
Oppo R1x 2.281
Oppo Find 7a 2.279
Alcatel One Touch Hero 2.272
Apple iPhone 4S 2.269
HTC Desire 600 dual sim 2.262
Nokia Asha 311 2.25
Xiaomi Mi Note 2.234
Motorola Moto G (2014) 2.233
LG Nexus 5 2.228
Huawei P8 2.196
Nokia Lumia 820 2.193
HTC One (E8) 2.185
Oppo N3 2.181
Nokia Lumia 920 2.17
Huawei Honor 6 2.169
HTC One X 2.158
Asus Zenfone 2 ZE551ML 2.149
LG Aka 2.145
Nokia N8 2.144
Nokia Lumia 620 2.142
Archos 50 Diamond 2.134
Nokia 515 2.134
HTC Desire 500 2.129
Sony Xperia C3 Dual 2.12
Xiaomi Redmi Note 2.119
Sony Xperia acro S 2.119
Nokia Lumia 1020 2.103
Oppo Find 5 2.088
Sony Xperia SL 2.078
Nokia Lumia 630 2.056
BlackBerry Z10 2.051
Huawei Ascend Mate7 2.024
Samsung I9295 Galaxy S4 Active 2.022
Apple iPhone 4 2.016
HTC One mini 2.003
Xiaomi Mi 3 2.001
Huawei Ascend P7 1.992
LG G2 1.976
Sony Xperia E4g 1.972
OnePlus One 1.961
Oppo R819 1.957
Sony Ericsson Xperia ray 1.955
Lenovo Vibe X2 1.952
Sony Xperia Z2 1.944
Sony Xperia E3 1.943
Nokia Lumia 1320 1.941
HTC One mini 2 1.94
Samsung Galaxy Camera 1.938
Samsung Galaxy Grand Prime 1.935
Sony Xperia J 1.932
Acer CloudMobile S500 1.931
ZTE Blade S6 1.927
LG Nexus 4 1.926
LG G Pro 2 1.922
Samsung Galaxy Mega 6.3 1.913
Nokia Asha 308 1.911
HTC Butterfly 2 1.905
Sony Xperia T 1.894
Nokia Lumia 830 1.887
HTC Desire X 1.878
HTC Windows Phone 8X 1.873
HTC Butterfly 1.873
HTC Butterfly S 1.867
Huawei Ascend P6 1.865
Huawei Ascend Mate 1.845
LG G2 mini 1.838
LG G3 1.82
Nokia Lumia 1520 1.813
HTC Desire 616 dual sim 1.797
Sony Xperia V 1.792
HTC Desire 816 1.783
Sony Xperia Z1 Compact 1.772
HTC Desire 700 dual sim 1.769
Sony Xperia U 1.758
Meizu MX3 1.754
LG Optimus G 1.753
Sony Xperia T2 Ultra 1.74
Sony Xperia Z3 Tablet Compact 1.735
Acer Liquid Jade S 1.734
Sony Xperia SP 1.733
LG Optimus 4X HD 1.691
Oppo Find 7 1.691
HTC One V 1.685
BlackBerry Q5 1.682
LG Optimus Vu 1.68
Motorola Moto E (2nd Gen) 1.675
Xiaomi Mi Pad 7.9 1.672
LG Optimus GJ 1.666
LG Optimus 3D Max 1.658
HTC Desire V 1.646
Samsung Galaxy Xcover 2 1.632
Samsung Galaxy Ace 3 1.622
Microsoft Lumia 532 1.615
Jolla Jolla 1.605
Microsoft Lumia 435 1.598
Sony Xperia Z Ultra 1.578
Sony Xperia go 1.577
Samsung Galaxy Ace 2 I8160 1.566
Samsung Galaxy Core 1.563
LG Optimus G Pro 1.552
Motorola Moto E 1.545
LG Optimus 3D 1.542
Nokia Asha 302 1.537
Samsung Galaxy Core Prime 1.507
BlackBerry Curve 9320 1.488
Sony Xperia M 1.473
Oppo N1 1.47
Sony Xperia E4 1.467
Meizu MX 4-core 1.462
Nokia Lumia 610 1.432
Samsung Galaxy S Duos 1.4
Microsoft Lumia 535 1.393
Sony Xperia M2 1.393
Samsung Galaxy Grand Neo 1.393
Samsung Galaxy Grand 2 1.38
Sony Xperia E1 1.372
Nokia Lumia 625 1.371
Gigabyte GSmart G1355 1.361
Sony Xperia L 1.351
Samsung Galaxy Mega 5.8 1.35
Xiaomi Redmi 1S 1.35
HTC Desire 510 1.34
Sony Xperia M2 Aqua 1.331
Sony Xperia miro 1.324
Samsung I9082 Galaxy Grand 1.321
Samsung I8530 Galaxy Beam 1.315
Xiaomi Redmi 2 1.311
HTC Desire C 1.3
Nokia X 1.291
Sony Xperia C 1.283
Nokia Asha 503 1.281
Nokia Asha 501 1.27
LG Optimus L7 1.269
Nokia Lumia 510 1.268
Samsung Galaxy Fame 1.245
LG Optimus L9 1.227
Meizu MX 1.221
Samsung Galaxy Young 1.22
Sony Xperia E 1.215
Nokia XL 1.204
Sony Xperia E dual 1.203
Asus Memo Pad 7 ME176C 1.198
Samsung Galaxy Pocket 1.18
Nokia Asha 305 1.178
Nokia Asha 306 1.175
Sony Xperia neo L 1.169
Sony Xperia tipo 1.166
Nokia Lumia 520 1.161
Samsung S6802 Galaxy Ace Duos 1.148
Samsung Galaxy mini 2 1.114
Connectivity
For starters, the vivo X5Max is a dual-SIM dual-standby device. One of the cards gets the full 2G/3G/4G treatment with multiple bands each, while the other is limited to 2G. You can set which one is which in the settings and the micro/nano SIM slots mean you can use either form factor as your main card. You'd need to go microSIM though if you value the memory expansion, as the microSD slot is shared with the nanoSIM.
The smartphone has dual-band Wi-Fi 802.11 a/b/g/n with DLNA, Wi-Fi direct and hotspot support. There's Bluetooth v4.0, but no NFC or FM radio.
There's GPS with A-GPS for precise positioning over cellular, but for all we know, there's no GLONASS to utilize Russian satellites.
The microUSB 2.0 port supports USB On-The-Go and lets you attach peripherals. A standard 3.5mm jack completes the wired connectivity package.
Battery life
Slim phones typically struggle in this very part of our test for very obvious reasons - less space means less battery capacity. The thinnest 4.75mm vivo X5Max comes with a modest 2,000mAh cell, but the version we have for review is a bit better equipped with a 2,300mAh unit.
To put it simply, the X5Max amazed us in terms of its battery performance. It posted impressive scores across the board, not only considering its screen diagonal and battery size, but also in absolute values. Standby endurance, which is not included in the scorecard, is about 11 full days with a single SIM, and a day less with a second SIM inside. Call times on a 3G network are more than 17 hours, well above average.
Moving on to on-screen activities, the smartphone is good for nearly 11 hours of video playback - it can easily last you a transatlantic flight with constant movie watching.
Web browsing is the most taxing on the battery, but it also shows a marked difference between the stock browser and the also available Google Chrome. While the vivo offering manages a little over 6 hours, Chrome is substantially more efficient and with it the X5Max scored upwards of 9 hours of web browsing.
The battery testing procedure is described in detail in case you're interested in the nitty-gritties.
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