Technically speaking, with a display diagonal of 5.73 inches, the Archos Diamond Omega is firmly in phablet territory. Then again, in practical terms, the Z17s is closer to the 5.5-inch, 16:9 golden standard in both usability and footprint. It is even a few millimeters shorter than its Z17 predecessor while managing to deliver a good 120 pixels of extra screen real estate.
What we have here is an LTPS IPS LCD. With a resolution of 1080 x 2040 pixels, it is technically fair to say it has 1080p resolution.
Our tests show that the Z17s can get reasonably bright at up to around 440 nits but we've seen way brighter LCDs.
Display test
100% brightness
Black, cd/m2
White, cd/m2
Contrast ratio
Nokia 8
0.382
703
1840
Huawei P10
0.416
592
1423
Sony Xperia XZ Premium (sRGB)
0.48
576
1200
Sony Xperia XZ Premium
0.463
573
1238
LG G6 max auto
0.277
564
2036
Xiaomi Mi A1
0.351
551
1570
Samsung Galaxy J7 Pro (Max Auto)
0
539
∞
vivo V7+
0.289
515
1782
Xiaomi Mi Mix 2 (Increased Contrast)
0.4
515
1287
HTC U Ultra (max auto)
0.564
507
899
Nokia 6 (Global version)
0.364
484
1330
LG G6
0.228
468
2053
Oppo F5 (Max Auto)
0.214
462
2159
Archos Diamond Omega
0.379
440
1160
OnePlus 5T
0
437
∞
OnePlus 5
0
435
∞
HTC U Ultra
0.539
428
794
Oppo F5
0.192
422
2198
ZTE Nubia Z17 (Max Auto)
0.268
392
1461
ZTE Nubia Z17
0.267
388
1451
Xiaomi Mi Mix 2
0.379
387
1020
Samsung Galaxy J7 Pro
0
350
∞
Contrast ratio is decent. Still, it is nothing really spectacular and definitely far from the yardstick for an average 2017 flagship. The same goes for sunlight legibility.
Sunlight contrast ratio
Apple iPhone X 5.013
OnePlus 5T 4.789
Samsung Galaxy S8 4.768
Samsung Galaxy S8+ 4.658
Samsung Galaxy S6 edge+ 4.615
Motorola Moto Z2 Play 4.459
Oppo R11 4.454
Samsung Galaxy S7 edge 4.439
OnePlus 3 4.424
Samsung Galaxy S7 4.376
HTC One A9 4.274
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
Google Pixel XL 4.164
ZTE Axon 7 4.154
Samsung Galaxy Note8 4.148
Meizu Pro 7 Plus 4.147
Samsung Galaxy S6 edge 4.124
Samsung Galaxy A7 (2017) 4.124
Huawei Mate 10 Pro (normal) 4.096
Samsung Galaxy Note5 4.09
Google Pixel 2 (pre-update) 4.023
LG V30 4.022
Huawei Nexus 6P 4.019
Samsung Galaxy J7 Pro 3.998
OnePlus X 3.983
Vivo Xplay5 Elite 3.983
Oppo R7s 3.964
Apple iPhone 7 3.964
Apple iPhone 8 (True Tone) 3.957
Huawei P9 Plus 3.956
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
Samsung Galaxy C7 3.896
Samsung Galaxy A5 3.895
Samsung Galaxy J7 outdoor 3.879
Samsung Galaxy J2 outdoor 3.873
Samsung Galaxy A8 3.859
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
Sony Xperia XZ1 Compact 3.729
Apple iPhone 8 Plus (True Tone) 3.725
Oppo F1 Plus 3.709
Vivo X5Pro 3.706
Sony Xperia X Compact 3.694
Samsung Galaxy A3 (2017) 3.688
Apple iPhone SE 3.681
Huawei Mate 9 3.68
Samsung Galaxy A7 3.679
Meizu PRO 6 3.659
BlackBerry Priv 3.645
Sony Xperia XA1 Ultra 3.597
Apple iPhone 7 Plus 3.588
LG G6 3.556
Apple iPhone 6s Plus 3.53
Motorola Moto Z Play 3.526
Samsung Galaxy J3 (2016) 3.523
Samsung Galaxy J3 (2016) outdoor mode 3.523
Acer Jade Primo 3.521
Microsoft Lumia 950 3.512
Oppo R7 Plus 3.499
nubia Z11 3.466
Huawei P10 Plus 3.456
HTC U Ultra 3.453
Samsung Galaxy J7 3.422
Meizu MX5 3.416
LG V20 3.402
Huawei P10 3.379
Samsung Galaxy J5 (2016) 3.378
Oppo R9s 3.352
Honor 8 Pro 3.341
Oppo R7 3.32
Lenovo P2 3.316
Archos Diamond Omega 3.305
Honor 9 3.289
Xiaomi Mi 5s 3.276
Nokia 5 3.261
Nokia 6 (Chinese version) 3.244
Nokia 6 (Global version) 3.238
Samsung Galaxy J2 3.235
Sony Xperia X Performance 3.234
Xiaomi Mi Note 2 3.228
Motorola Moto X Play 3.222
Oppo F3 Plus 3.218
Huawei Mate 9 Pro 3.206
Huawei P9 3.195
Xiaomi Mi Mix 2 3.19
ZTE Nubia Z17 3.159
Lenovo Vibe Shot 3.113
HTC U11 Life 3.108
Motorola Moto X Force 3.105
LG Nexus 5X 3.092
HTC U11 3.089
Huawei Mate S 3.073
Microsoft Lumia 640 XL 3.065
Sony Xperia XA1 3.012
Sony Xperia L1 2.994
Sony Xperia X 2.989
Huawei P10 Lite 2.974
Samsung Galaxy Note 2.97
Sony Xperia Z1 2.95
Huawei Mate 8 2.949
Xiaomi Redmi 4 2.92
Xiaomi Redmi 3S 2.913
Sony Xperia XA Ultra 2.906
LG G5 2.905
Xiaomi Redmi 3s Prime 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
Microsoft Lumia 550 2.851
Lenovo Moto M 2.813
Xiaomi Redmi 3 Pro 2.803
Sony Xperia Z5 compact 2.784
Meizu MX6 2.751
LG V10 2.744
Huawei Mate 10 (normal) 2.742
Xiaomi Redmi 3 2.735
Xiaomi Redmi Note 4 (S625) 2.714
Meizu M5 2.71
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
Oppo F5 2.653
Doogee Mix 2.642
Xiaomi Mi 4i 2.641
Xiaomi Redmi 4a 2.635
Xiaomi Mi 5X (Standard) 2.616
Sony Xperia XA 2.609
Motorola Moto G4 Plus 2.582
Motorola Moto G4 Plus (max auto) 2.582
Meizu M5s 2.58
Xiaomi Mi 4c 2.574
LeEco Le Max 2 2.567
Microsoft Lumia 640 2.563
Asus Zenfone 3 ZE552KL 2.563
Xiaomi Mi Max 2 2.561
HTC U11+ 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
Oppo F1s 2.481
Motorola Moto G 2.477
Lenovo Vibe K5 Plus 2.473
Huawei G8 2.471
Huawei nova 2.467
Lenovo Vibe K5 2.459
Meizu m3 max 2.447
Xiaomi Mi 5X (Auto) 2.417
HTC 10 evo 2.407
Huawei Honor 7 2.406
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
Lenovo Vibe K4 Note 2.254
Sony Xperia C5 Ultra 2.253
Xiaomi Redmi Note 3 (MediaTek) 2.249
Sony Xperia C4 Dual 2.235
Xiaomi Mi Note 2.234
Motorola Moto G (2014) 2.233
LG Nexus 5 2.228
Huawei P8 2.196
Meizu M5 Note 2.189
Huawei Honor 6 2.169
Xiaomi Redmi Note 2 2.166
OnePlus Two 2.165
HTC One X 2.158
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
Sony Xperia E4g 1.972
OnePlus One 1.961
Meizu m3 note 1.923
BlackBerry Leap 1.892
Meizu m2 note 1.892
HTC Butterfly 1.873
Sony Xperia Z1 Compact 1.772
ZTE Nubia Z9 mini 1.759
Sony Xperia U 1.758
Asus Zenfone Selfie 1.68
Motorola Moto E (2nd Gen) 1.675
ZTE Nubia Z9 1.659
Jolla Jolla 1.605
Motorola Moto E 1.545
Sony Xperia M 1.473
Sony Xperia L 1.351
HTC Desire C 1.3
Sony Xperia C 1.283
Meizu MX 1.221
Sony Xperia E 1.215
The colors on the screen look bluish. The display has a distinct blue hue that we never really managed to quite get rid of. The Nubia ROM does offer some color tweaking options. You can adjust the overall tone and our best advice is to set the slider all the way up to warm and leave it there. Even so, it doesn't manage to entirely offset the blue tint.
There is also a trio of color saturation modes but these have a little real effect on colors. The best color accuracy we managed to get out of the Z17s has an average deltaE of 4.2 and a maximum of 8. Not too bad but not really color-accurate either. This was done using the Natural saturation mode and the warmest color setting at a screen brightness of 200 nits (about 64% brightness on our unit).
In standard mode at 100% brightness, the Archos Diamond Omega manages an average deltaE of 6.4 and a maximum of 12.8. This is mostly down to the bluish whites.
Connectivity
It should probably come as no surprise that the Z17s shares pretty much all of its connectivity options with the regular Nubia Z17. It is a Dual-SIM device taking two nano-SIMs. Worldwide band coverage across 2G, 3G and 4G is pretty solid - definitely better than the Xiaomi Mi 6, although nowhere near the OnePlus 5. The LTE is capped at Cat.9, which implies a theoretical maximum of 450 Mbps of download. No gigabit LTE support though, despite the Snapdragon 835 being perfectly capable of handling it.
Wi-Fi b/g/n over 2.4GHz and a/n/ac over 5GHz is supported. Bluetooth is still of the older 4.1 variety, so don't expect anything fancy along the lines of the OnePlus 5's aptX HD. NFC support is another check mark on the spec sheet. Positioning uses GPS, GLONASS, and BeiDou satellites. There is no FM radio. Unlike the regular Z17, the Z17s does not feature an IR blaster.
The only wired interface you get is USB Type-C. It offers OTG support and can also pump out analog audio via the provided dongle.
Battery
The Archos Diamond Omega doesn't exactly impress with a massive battery capacity. Where the regular Nubia Z17 managed to cram in 3,200mAh, the Z17s has got a 3,100mAh battery. This is really odd, considering the extra millimeter of depth the Z17s has over its predecessor.
Since both phones share the exact same chipset, we expected predictable standby and 3G call time numbers. Everything did indeed fall into place nicely. The Archos Diamond Omega manages its cellular connectivity, both active and passive, as one would expect from a 2017 flagship.
As for on-screen tests, we anticipated slight decline compared to the original Z17. Partially because of the 100mAh less of battery capacity, but mostly due to the new 17:9 panel. And indeed, you can expect the Archos Diamond Omega to last a couple of hours less on average than its Z17 sibling in browsing the web or video playback. Still, 74 hours is a pretty solid endurance rating overall.
The relatively small battery pack, combined with the QuickCharge 3 technology, means you can count on blazing fast top-ups on the Nubia Z17s. During our tests we managed to get from 0% all the way up to 66% in 30 minutes, using the included QC3 charger.
Our endurance rating denotes how long a single battery charge will last you if you use the Archos Diamond Omega for an hour each of telephony, web browsing, and video playback daily. We've established this usage pattern so 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-gritties. You can also 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.
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