戴尔 Latitude 12 5285 二合一变形本简短评测

Name: Dell Latitude 12 5285 2-in-1
Brand: Dell

似曾相识。对于普通的人来说，戴尔Latitude 12 5285 2合1变形本与微软的Surface Pro 4相似，包括屏幕尺寸，整体尺寸，以及可拆卸键盘和触控笔——这两个平板电脑/变形本在某种程度上极度相似。

Bernhard Pechlaner (translated by Kangfei Zheng), Published 05/14/2017 🇺🇸 🇩🇪 ...

Business Tablet Touchscreen Windows

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Dell Latitude 12 5285 2-in-1 (Latitude 12 5200 Series)

Processor

Intel Core i7-7600U 2 x 2.8 - 3.9 GHz, Kaby Lake

Graphics adapter

Intel HD Graphics 620, Core: 1150 MHz, RAM: 933 MHz, 21.20.16.4627

Memory

16 GB

, LPDDR3 SDRAM 1866MHz

Display

12.30 inch 3:2, 1920 x 1280 pixel 188 PPI, 十指触控, native pen support, BOE06DC, IPS, glossy: yes, detachable screen

Mainboard

Intel Kaby Lake-U Premium PCH

Storage

Samsung PM961 MZVLW256HEHP, 256 GB

Soundcard

Intel Kaby Lake-U/Y PCH - High Definition Audio

Connections

1 USB 3.0 / 3.1 Gen1, 2 USB 3.1 Gen2, 2 DisplayPort, 1 Kensington Lock, Audio Connections: 耳麦合一接口, Card Reader: MicroSD, Brightness Sensor, Sensors: 陀螺仪，电子罗盘 /磁力仪，加速度计

Networking

Intel Dual Band Wireless-AC 8265 (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5/), Bluetooth 4.2

Size

height x width x depth (in mm): 9.76 x 292 x 208.8

Battery

42 Wh Lithium-Polymer

Operating System

Microsoft Windows 10 Pro 64 Bit

Camera

Primary Camera: 8 MPix 前置自动对焦
Secondary Camera: 5 MPix 脸部固定对焦

Additional features

Speakers: MaxAudio Pro立体声扬声器, Keyboard: Latitude 5285 Travel Keyboard, Keyboard Light: no, 12 Months Warranty

Weight

1.226 kg, Power Supply: 240 g

Price

2000 USD

Links

Dell homepage
Dell notebook section

Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

see all specifications

HP Elite x2 1012 G1 Asus Transformer 3 Pro T303UA-GN050T Acer Aspire Switch Alpha 12 SA5-271-70EQ Dell Latitude 12 5285 2-in-1 Microsoft Surface Pro 4, Core i5, 128GB DIN A4 ❌

SD Card Reader
average JPG Copy Test (av. of 3 runs)
Dell Latitude 12 5285 2-in-1	64 MB/s
maximum AS SSD Seq Read Test (1GB)
Dell Latitude 12 5285 2-in-1	86.9 MB/s

Networking
iperf3 transmit AX12
Asus Transformer 3 Pro T303UA-GN050T Intel Wireless-AC 7265	685 MBit/s +54%
Microsoft Surface Pro 4, Core i5, 128GB Marvell AVASTAR Wireless-AC Network Controller (Klaus I211)	593 MBit/s +33%
Dell Latitude 12 5285 2-in-1 Intel Dual Band Wireless-AC 8265	446 MBit/s
iperf3 receive AX12
Asus Transformer 3 Pro T303UA-GN050T Intel Wireless-AC 7265	560 MBit/s +79%
Microsoft Surface Pro 4, Core i5, 128GB Marvell AVASTAR Wireless-AC Network Controller (Klaus I211)	459 MBit/s +47%
Dell Latitude 12 5285 2-in-1 Intel Dual Band Wireless-AC 8265	312 MBit/s


527.4 cd/m²	518.1 cd/m²	490.1 cd/m²
532.5 cd/m²	523.2 cd/m²	506.9 cd/m²
557.6 cd/m²	512.1 cd/m²	527.3 cd/m²

Distribution of brightness

BOE06DC tested with X-Rite i1Pro 2

Maximum: 557.6 cd/m² (Nits) Average: 521.7 cd/m² Minimum: 22.86 cd/m²
Brightness Distribution: 88 %
Center on Battery: 523.2 cd/m²
Contrast: 1246:1 (Black: 0.42 cd/m²)
ΔE Color 4 | 0.5-29.43 Ø4.91
ΔE Greyscale 5.5 | 0.5-98 Ø5.2
93.97% sRGB (Argyll 1.6.3 3D)
64.86% AdobeRGB 1998 (Argyll 1.6.3 3D)
64.7% AdobeRGB 1998 (Argyll 2.2.0 3D)
94% sRGB (Argyll 2.2.0 3D)
62.8% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.16

Download ICC File (X-Rite i1Pro 2)

	Dell Latitude 12 5285 2-in-1 BOE06DC, IPS, 12.3", 1920x1280	Microsoft Surface Pro 4, Core i5, 128GB Samsung 123YL01-001 ID: SDC3853, IPS, 12.3", 2736x1824	HP Elite x2 1012 G1 LG Philips, IPS, 12.1", 1920x1280	Acer Aspire Switch Alpha 12 SA5-271-70EQ WST KL.1200W.002 WST2216, IPS, 12", 2160x1440	Asus Transformer 3 Pro T303UA-GN050T BOE BOE06AC (NV126A1M-N51), IPS, 12.6", 2880x1920
Display		4%	-18%	-12%	21%
Display P3 Coverage	62.8	65 4%	53.8 -14%	55.7 -11%	81.8 30%
sRGB Coverage	94	96.5 3%	73.7 -22%	82.7 -12%	98.3 5%
AdobeRGB 1998 Coverage	64.7	67 4%	53.8 -17%	56.9 -12%	82.2 27%
Response Times		-28%	24%	-6%	10%
Response Time Grey 50% / Grey 80% *	42.4 ?(20.4, 22)	46 ?(17.2, 28.8, plateau, spikes in between) -8%	33.2 ?(15.2, 18) 22%	21 ?(5, 16) 50%	30 ?(14, 16) 29%
Response Time Black / White *	30.8 ?(18, 12.8)	31.2 ?(6, 25.2, Spikes in between) -1%	22.8 ?(10.4, 12.4) 26%	28 ?(5, 23) 9%	29 ?(8, 21) 6%
PWM Frequency	210.1 ?(99)	50 ?(50) -76%		50 ?(10) -76%	200 ?(90) -5%
Screen		1%	-24%	-33%	-3%
Brightness middle	523.2	413 -21%	322 -38%	391 -25%	316 -40%
Brightness	522	396 -24%	319 -39%	367 -30%	307 -41%
Brightness Distribution	88	87 -1%	97 10%	87 -1%	91 3%
Black Level *	0.42	0.36 14%	0.42 -0%	0.56 -33%	0.29 31%
Contrast	1246	1147 -8%	767 -38%	698 -44%	1090 -13%
Colorchecker dE 2000 *	4	3.09 23%	6.02 -51%	6.96 -74%	3.91 2%
Colorchecker dE 2000 max. *	8.6		10.06 -17%	13.43 -56%	7.9 8%
Greyscale dE 2000 *	5.5	3.92 29%	6.29 -14%	7.44 -35%	5.37 2%
Gamma	2.16 ^102%	2.3 ^96%	2.4 ^92%	2.41 ^91%	2.36 ^93%
CCT	7546 ^86%	7333 ^89%	7712 ^84%	8126 ^80%	7812 ^83%
Color Space (Percent of AdobeRGB 1998)	64.86	61 -6%	47.8 -26%	53 -18%	72 11%
Color Space (Percent of sRGB)	93.97	97 3%	73.2 -22%	83 -12%	98 4%
Total Average (Program / Settings)		-8% / -4%	-6% / -16%	-17% / -24%	9% / 4%

* ... smaller is better

Display Response Times

ℹ

Display response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.

↔ Response Time Black to White
30.8 ms ... rise ↗ and fall ↘ combined	↗ 18 ms rise
30.8 ms ... rise ↗ and fall ↘ combined	↘ 12.8 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 81 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (20.9 ms).
↔ Response Time 50% Grey to 80% Grey
42.4 ms ... rise ↗ and fall ↘ combined	↗ 20.4 ms rise
42.4 ms ... rise ↗ and fall ↘ combined	↘ 22 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.165 (minimum) to 636 (maximum) ms. » 67 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (32.8 ms).

Screen Flickering / PWM (Pulse-Width Modulation)

ℹ

To dim the screen, some notebooks will simply cycle the backlight on and off in rapid succession - a method called Pulse Width Modulation (PWM) . This cycling frequency should ideally be undetectable to the human eye. If said frequency is too low, users with sensitive eyes may experience strain or headaches or even notice the flickering altogether.

Screen flickering / PWM detected

210.1 Hz

≤ 99 % brightness setting

The display backlight flickers at 210.1 Hz (worst case, e.g., utilizing PWM) Flickering detected at a brightness setting of 99 % and below. There should be no flickering or PWM above this brightness setting.

The frequency of 210.1 Hz is relatively low, so sensitive users will likely notice flickering and experience eyestrain at the stated brightness setting and below.

In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8705 (minimum: 5 - maximum: 343500) Hz was measured.

Cinebench R15 CPU Single 64 Bit

Cinebench R15 | Cinebench R11.5 | Cinebench R10 | wPrime 2.10

Cinebench R15
CPU Single 64Bit
Dell Latitude 12 5285 2-in-1 Intel Core i7-7600U	152 Points
Acer Aspire Switch Alpha 12 SA5-271-70EQ Intel Core i7-6500U	128 Points -16%
Microsoft Surface Pro 4, Core i5, 128GB Intel Core i5-6300U	122 Points -20%
Asus Transformer 3 Pro T303UA-GN050T Intel Core i7-6500U	117 Points -23%
HP Elite x2 1012 G1 Intel Core m5-6Y54	111 Points -27%
CPU Multi 64Bit
Dell Latitude 12 5285 2-in-1 Intel Core i7-7600U	329 Points
Acer Aspire Switch Alpha 12 SA5-271-70EQ Intel Core i7-6500U	320 Points -3%
Microsoft Surface Pro 4, Core i5, 128GB Intel Core i5-6300U	306 Points -7%
HP Elite x2 1012 G1 Intel Core m5-6Y54	255 Points -22%
Asus Transformer 3 Pro T303UA-GN050T Intel Core i7-6500U	221 Points -33%

Cinebench R11.5
CPU Single 64Bit
Dell Latitude 12 5285 2-in-1 Intel Core i7-7600U	1.76 Points
Microsoft Surface Pro 4, Core i5, 128GB Intel Core i5-6300U	1.4 Points -20%
Asus Transformer 3 Pro T303UA-GN050T Intel Core i7-6500U	1.29 Points -27%
HP Elite x2 1012 G1 Intel Core m5-6Y54	1.26 Points -28%
CPU Multi 64Bit
Dell Latitude 12 5285 2-in-1 Intel Core i7-7600U	3.62 Points
Microsoft Surface Pro 4, Core i5, 128GB Intel Core i5-6300U	3.4 Points -6%
HP Elite x2 1012 G1 Intel Core m5-6Y54	2.7 Points -25%
Asus Transformer 3 Pro T303UA-GN050T Intel Core i7-6500U	2.44 Points -33%

Cinebench R10
Rendering Multiple CPUs 32Bit
Dell Latitude 12 5285 2-in-1 Intel Core i7-7600U	11532 Points
Microsoft Surface Pro 4, Core i5, 128GB Intel Core i5-6300U	10558 Points -8%
HP Elite x2 1012 G1 Intel Core m5-6Y54	8731 Points -24%
Asus Transformer 3 Pro T303UA-GN050T Intel Core i7-6500U	7308 Points -37%
Rendering Single 32Bit
Asus Transformer 3 Pro T303UA-GN050T Intel Core i7-6500U	7350 Points +20%
Dell Latitude 12 5285 2-in-1 Intel Core i7-7600U	6115 Points
Microsoft Surface Pro 4, Core i5, 128GB Intel Core i5-6300U	4656 Points -24%
HP Elite x2 1012 G1 Intel Core m5-6Y54	4235 Points -31%

wPrime 2.10 - 1024m
Dell Latitude 12 5285 2-in-1 Intel Core i7-7600U	546 s *

* ... smaller is better

Cinebench R10 Shading 32Bit

8463

Cinebench R10 Rendering Multiple CPUs 32Bit

11532

Cinebench R10 Rendering Single 32Bit

6115

Cinebench R11.5 OpenGL 64Bit

39.88 fps

Cinebench R11.5 CPU Multi 64Bit

3.62 Points

Cinebench R11.5 CPU Single 64Bit

1.76 Points

Cinebench R15 Ref. Match 64Bit

97.8 %

Cinebench R15 OpenGL 64Bit

44.98 fps

Cinebench R15 CPU Multi 64Bit

329 Points

Cinebench R15 CPU Single 64Bit

152 Points

Help

... in comparison

PCMark 8
Home Score Accelerated v2
Dell Latitude 12 5285 2-in-1 HD Graphics 620, i7-7600U, Samsung PM961 MZVLW256HEHP	4741 Points
Acer Aspire Switch Alpha 12 SA5-271-70EQ HD Graphics 520, 6500U, Lite-On CV1-8B512 M.2 512 GB	3429 Points -28%
Asus Transformer 3 Pro T303UA-GN050T HD Graphics 520, 6500U, SK Hynix Canvas SC300 512GB M.2 (HFS512G39MND)	2985 Points -37%
HP Elite x2 1012 G1 HD Graphics 515, 6Y54, Liteon L8H-256V2G	2983 Points -37%
Microsoft Surface Pro 4, Core i5, 128GB HD Graphics 520, 6300U, Samsung MZFLV128 NVMe	2770 Points -42%
Work Score Accelerated v2
Acer Aspire Switch Alpha 12 SA5-271-70EQ HD Graphics 520, 6500U, Lite-On CV1-8B512 M.2 512 GB	4219 Points +20%
HP Elite x2 1012 G1 HD Graphics 515, 6Y54, Liteon L8H-256V2G	3932 Points +12%
Asus Transformer 3 Pro T303UA-GN050T HD Graphics 520, 6500U, SK Hynix Canvas SC300 512GB M.2 (HFS512G39MND)	3830 Points +9%
Microsoft Surface Pro 4, Core i5, 128GB HD Graphics 520, 6300U, Samsung MZFLV128 NVMe	3697 Points +5%
Dell Latitude 12 5285 2-in-1 HD Graphics 620, i7-7600U, Samsung PM961 MZVLW256HEHP	3510 Points
Creative Score Accelerated v2
Dell Latitude 12 5285 2-in-1 HD Graphics 620, i7-7600U, Samsung PM961 MZVLW256HEHP	4602 Points
Asus Transformer 3 Pro T303UA-GN050T HD Graphics 520, 6500U, SK Hynix Canvas SC300 512GB M.2 (HFS512G39MND)	4043 Points -12%
Microsoft Surface Pro 4, Core i5, 128GB HD Graphics 520, 6300U, Samsung MZFLV128 NVMe	3736 Points -19%
HP Elite x2 1012 G1 HD Graphics 515, 6Y54, Liteon L8H-256V2G	3423 Points -26%

PCMark 8 Home Score Accelerated v2		4741 points
PCMark 8 Creative Score Accelerated v2		4602 points
PCMark 8 Work Score Accelerated v2		3510 points
Help

	Dell Latitude 12 5285 2-in-1 Samsung PM961 MZVLW256HEHP	Microsoft Surface Pro 4, Core i5, 128GB Samsung MZFLV128 NVMe	HP Elite x2 1012 G1 Liteon L8H-256V2G	Acer Aspire Switch Alpha 12 SA5-271-70EQ Lite-On CV1-8B512 M.2 512 GB	Asus Transformer 3 Pro T303UA-GN050T SK Hynix Canvas SC300 512GB M.2 (HFS512G39MND)	Microsoft Surface Pro 4 Core i7 Samsung MZFLV256 NVMe
CrystalDiskMark 3.0		-37%	-32%	-29%	-41%	-16%
Read Seq	1294	666 -49%	501 -61%	496.6 -62%	398.9 -69%	834 -36%
Write Seq	865	154.2 -82%	297.2 -66%	415.3 -52%	402 -54%	304 -65%
Read 512	406	266.3 -34%	351.7 -13%	335.9 -17%	303.1 -25%	396.7 -2%
Write 512	589	154.2 -74%	295.7 -50%	384 -35%	320.3 -46%	304.3 -48%
Read 4k	31.75	28.51 -10%	28.31 -11%	32.38 2%	26.11 -18%	40.75 28%
Write 4k	72.2	101.5 41%	90.3 25%	81.8 13%	57.7 -20%	106.3 47%
Read 4k QD32	493.3	368.3 -25%	285 -42%	296.3 -40%	245.8 -50%	393.1 -20%
Write 4k QD32	434.5	153.6 -65%	268.4 -38%	260.3 -40%	253.8 -42%	292.3 -33%

HD Tune

CrystalDiskMark 3.0

AS SSD

Samsung PM961 MZVLW256HEHP

Transfer Rate Minimum: 551 MB/s

Transfer Rate Maximum: 1110 MB/s

Transfer Rate Average: 716 MB/s

Access Time: 0.1 ms

Burst Rate: 193.5 MB/s

CPU Usage: 12.2 %

3DMark 11 | 3DMark

3DMark 11
1280x720 Performance GPU
Microsoft Surface Pro 4 Core i7 Intel Iris Graphics 540, 6650U	2450 Points +54%
Dell Latitude 12 5285 2-in-1 Intel HD Graphics 620, i7-7600U	1589 Points
Acer Aspire Switch Alpha 12 SA5-271-70EQ Intel HD Graphics 520, 6500U	1481 Points -7%
Microsoft Surface Pro 4, Core i5, 128GB Intel HD Graphics 520, 6300U	1402 Points -12%
Asus Transformer 3 Pro T303UA-GN050T Intel HD Graphics 520, 6500U	1271 Points -20%
HP Elite x2 1012 G1 Intel HD Graphics 515, 6Y54	1200 Points -24%
1280x720 Performance Combined
Microsoft Surface Pro 4 Core i7 Intel Iris Graphics 540, 6650U	2255 Points +51%
Microsoft Surface Pro 4, Core i5, 128GB Intel HD Graphics 520, 6300U	1509 Points +1%
Dell Latitude 12 5285 2-in-1 Intel HD Graphics 620, i7-7600U	1490 Points
Acer Aspire Switch Alpha 12 SA5-271-70EQ Intel HD Graphics 520, 6500U	1451 Points -3%
HP Elite x2 1012 G1 Intel HD Graphics 515, 6Y54	1236 Points -17%
Asus Transformer 3 Pro T303UA-GN050T Intel HD Graphics 520, 6500U	1171 Points -21%

3DMark
1280x720 Cloud Gate Standard Graphics
Microsoft Surface Pro 4 Core i7 Intel Iris Graphics 540, 6650U	11650 Points +32%
Dell Latitude 12 5285 2-in-1 Intel HD Graphics 620, i7-7600U	8850 Points
Acer Aspire Switch Alpha 12 SA5-271-70EQ Intel HD Graphics 520, 6500U	7457 Points -16%
Microsoft Surface Pro 4, Core i5, 128GB Intel HD Graphics 520, 6300U	7455 Points -16%
HP Elite x2 1012 G1 Intel HD Graphics 515, 6Y54	6308 Points -29%
Asus Transformer 3 Pro T303UA-GN050T Intel HD Graphics 520, 6500U	6137 Points -31%
1920x1080 Fire Strike Graphics
Microsoft Surface Pro 4 Core i7 Intel Iris Graphics 540, 6650U	1477 Points +36%
Dell Latitude 12 5285 2-in-1 Intel HD Graphics 620, i7-7600U	1084 Points
Microsoft Surface Pro 4, Core i5, 128GB Intel HD Graphics 520, 6300U	905 Points -17%
Acer Aspire Switch Alpha 12 SA5-271-70EQ Intel HD Graphics 520, 6500U	886 Points -18%
HP Elite x2 1012 G1 Intel HD Graphics 515, 6Y54	797 Points -26%
Asus Transformer 3 Pro T303UA-GN050T Intel HD Graphics 520, 6500U	753 Points -31%
1920x1080 Ice Storm Extreme Graphics
Microsoft Surface Pro 4 Core i7 Intel Iris Graphics 540, 6650U	68398 Points +66%
Dell Latitude 12 5285 2-in-1 Intel HD Graphics 620, i7-7600U	41229 Points
Asus Transformer 3 Pro T303UA-GN050T Intel HD Graphics 520, 6500U	35725 Points -13%

3DMark 11 Performance		1744 points
3DMark Ice Storm Standard Score		12587 points
3DMark Cloud Gate Standard Score		6652 points
3DMark Fire Strike Score		985 points
3DMark Fire Strike Extreme Score		457 points
Help

... in comparison

BioShock Infinite - 1366x768 Medium Preset (sort by value)
Dell Latitude 12 5285 2-in-1 HD Graphics 620, i7-7600U, Samsung PM961 MZVLW256HEHP	32.8 fps
Microsoft Surface Pro 4, Core i5, 128GB HD Graphics 520, 6300U, Samsung MZFLV128 NVMe	30 fps -9%
HP Elite x2 1012 G1 HD Graphics 515, 6Y54, Liteon L8H-256V2G	24.6 fps -25%
Acer Aspire Switch Alpha 12 SA5-271-70EQ HD Graphics 520, 6500U, Lite-On CV1-8B512 M.2 512 GB	30 fps -9%
Asus Transformer 3 Pro T303UA-GN050T HD Graphics 520, 6500U, SK Hynix Canvas SC300 512GB M.2 (HFS512G39MND)	26.9 (12.1^min - 67.2^max) fps -18%
Microsoft Surface Pro 4 Core i7 Iris Graphics 540, 6650U, Samsung MZFLV256 NVMe	49.1 fps +50%

	low	med.	high	ultra
Tomb Raider (2013)	88.6	45.5	29.7	13.6
BioShock Infinite (2013)	56.5	32.8	28.6	9

Noise Level

Idle		28.2 / 28.2 / 28.2 dB(A)
Load		30.4 / 34 dB(A)

	30 dB silent 40 dB(A) audible 50 dB(A) loud
min: , med: , max: Audix TM1, Arta (15 cm distance) environment noise: 28.2 dB(A)

	Dell Latitude 12 5285 2-in-1 HD Graphics 620, i7-7600U, Samsung PM961 MZVLW256HEHP	Microsoft Surface Pro 4, Core i5, 128GB HD Graphics 520, 6300U, Samsung MZFLV128 NVMe	Asus Transformer 3 Pro T303UA-GN050T HD Graphics 520, 6500U, SK Hynix Canvas SC300 512GB M.2 (HFS512G39MND)	Microsoft Surface Pro 4 Core i7 Iris Graphics 540, 6650U, Samsung MZFLV256 NVMe
Noise		-18%	-11%	-12%
off / environment *	28.2		30.7 -9%
Idle Minimum *	28.2	31.5 -12%	30.7 -9%	28.4 -1%
Idle Average *	28.2	31.5 -12%	30.7 -9%	28.6 -1%
Idle Maximum *	28.2	31.5 -12%	30.7 -9%	28.7 -2%
Load Average *	30.4	40.5 -33%	37 -22%	40.8 -34%
Load Maximum *	34	40.7 -20%	37.1 -9%	41.4 -22%

* ... smaller is better

Max. Load

Idle


36.4 °C	38 °C	38.2 °C
34.4 °C	33.6 °C	26.2 °C
31.2 °C	30.6 °C	29 °C

Maximum: 38.2 °C
Average: 33.1 °C


29.2 °C	48.6 °C	48.2 °C
32.6 °C	44 °C	42.8 °C
32.2 °C	35 °C	36.6 °C

Maximum: 48.6 °C
Average: 38.8 °C

Power Supply (max.) 42 °C | Room Temperature 21 °C | Raytek Raynger ST

(±) The average temperature for the upper side under maximal load is 33.1 °C / 92 F, compared to the average of 30.3 °C / 87 F for the devices in the class Convertible.
(+) The maximum temperature on the upper side is 38.2 °C / 101 F, compared to the average of 35.4 °C / 96 F, ranging from 19.6 to 60 °C for the class Convertible.
(-) The bottom heats up to a maximum of 48.6 °C / 119 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 28.4 °C / 83 F, compared to the device average of 30.3 °C / 87 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 31.2 °C / 88.2 F and are therefore cool to the touch.
(-) The average temperature of the palmrest area of similar devices was 28 °C / 82.4 F (-3.2 °C / -5.8 F).

Dell Latitude 12 5285 2-in-1 audio analysis

(±) | speaker loudness is average but good (72.4 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 16.3% lower than median
(±) | linearity of bass is average (11% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.3% away from median
(±) | linearity of mids is average (11.3% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.6% away from median
(±) | linearity of highs is average (8.2% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (23.5% difference to median)
Compared to same class
» 69% of all tested devices in this class were better, 5% similar, 26% worse
» The best had a delta of 6%, average was 21%, worst was 57%
Compared to all devices tested
» 67% of all tested devices were better, 7% similar, 26% worse
» The best had a delta of 4%, average was 25%, worst was 134%

Apple MacBook 12 (Early 2016) 1.1 GHz audio analysis

(+) | speakers can play relatively loud (83.6 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 11.3% lower than median
(±) | linearity of bass is average (14.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.4% away from median
(+) | mids are linear (5.5% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2% away from median
(+) | highs are linear (4.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (10.2% difference to median)
Compared to same class
» 6% of all tested devices in this class were better, 2% similar, 92% worse
» The best had a delta of 5%, average was 19%, worst was 53%
Compared to all devices tested
» 4% of all tested devices were better, 1% similar, 95% worse
» The best had a delta of 4%, average was 25%, worst was 134%

Power Consumption

Off / Standby	0.26 / 2.54 Watt
Idle	2.85 / 6.76 / 6.91 Watt
Load	32.88 / 37.41 Watt


Key: min: , med: , max: Metrahit Energy

	Dell Latitude 12 5285 2-in-1 i7-7600U, HD Graphics 620, Samsung PM961 MZVLW256HEHP, IPS, 1920x1280, 12.3"	Microsoft Surface Pro 4, Core i5, 128GB 6300U, HD Graphics 520, Samsung MZFLV128 NVMe, IPS, 2736x1824, 12.3"	HP Elite x2 1012 G1 6Y54, HD Graphics 515, Liteon L8H-256V2G, IPS, 1920x1280, 12.1"	Acer Aspire Switch Alpha 12 SA5-271-70EQ 6500U, HD Graphics 520, Lite-On CV1-8B512 M.2 512 GB, IPS, 2160x1440, 12"	Asus Transformer 3 Pro T303UA-GN050T 6500U, HD Graphics 520, SK Hynix Canvas SC300 512GB M.2 (HFS512G39MND), IPS, 2880x1920, 12.6"
Power Consumption		-11%	-0%	-44%	-48%
Idle Minimum *	2.85	4.4 -54%	3.7 -30%	5.5 -93%	6.7 -135%
Idle Average *	6.76	9 -33%	6.8 -1%	9.8 -45%	10.3 -52%
Idle Maximum *	6.91	10.7 -55%	7.6 -10%	11.9 -72%	13.5 -95%
Load Average *	32.88	19.6 40%	22.5 32%	36.1 -10%	26 21%
Load Maximum *	37.41	19.9 47%	34.5 8%	36.7 2%	28.8 23%

* ... smaller is better

Battery Runtime

Idle (without WLAN, min brightness)		17h 55min
WiFi Websurfing		8h 06min
Load (maximum brightness)		1h 45min

	Dell Latitude 12 5285 2-in-1 i7-7600U, HD Graphics 620, 42 Wh	Microsoft Surface Pro 4, Core i5, 128GB 6300U, HD Graphics 520, 38 Wh	HP Elite x2 1012 G1 6Y54, HD Graphics 515, 37 Wh	Acer Aspire Switch Alpha 12 SA5-271-70EQ 6500U, HD Graphics 520, 37 Wh	Asus Transformer 3 Pro T303UA-GN050T 6500U, HD Graphics 520, 39 Wh	Microsoft Surface Pro 4 Core i7 6650U, Iris Graphics 540, 38 Wh
Battery Runtime		-7%	-6%	-23%	-39%	-35%
Reader / Idle	1075	899 -16%	732 -32%	644 -40%	426 -60%	654 -39%
WiFi v1.3	486	427 -12%	443 -9%	291 -40%	223 -54%	293 -40%
Load	105	111 6%	130 24%	115 10%	102 -3%	79 -25%

Pros

+ 非常明亮的显示屏

+ 性能优异

+ 很安静

+ 很容易维护/升级

+ 2x USB-C型接口

+ 包括键盘底座和手写笔

Cons

- 变得很热

- 分辨率低于竞争对手

- 没有雷电接口

- 有点沉重

- 即使更昂贵的配置也只有1年保修标准

- 昂贵

戴尔Latitude 12 5285是一个坚固的商务变形本。2合1，且符合人体工程学，运行速度优秀和续航优秀，外观很有吸引力。是的，它看起来很像微软的Surface Pro 4，但是我们老实说，不要指望戴尔采用新外观，而能做到标新立异。可拆卸键盘提供坚实的按键反馈，并提供两种背光强度。触控笔作为额外的输入设备工具，非常好用，并提供了附加的功能，可以启动Microsoft OneNote或其他应用程序。戴尔与竞争对手的不同之处在于两个关键点：首先，虽然显示分辨率较低，但鉴于Latitude的业务导向，我们不认为这是重大缺陷——另外，面板非常明亮，远超竞争对手。另外，2合1笔记本硬件非常易于使用和维护，这同样也是基于平板电脑的变形本的致命弱点。

Latitude的突出特色毫无疑问是其显示效果，它非常亮，平均亮度超过520尼特。

主要让人不喜欢的点是：5285在负载下会非常热，也比竞争对手稍重。增加一个雷电3端口可能会是一个不错的选择。 Latitude非常昂贵的，对于一些用户来说，其他变形本，比如，华硕Transformer 3 Pro或液冷式宏碁 Aspire Switch Alpha 12更具吸引力，即使是它们的续航能力较差。同样，微软的Surface Pro 4也是一个不错的选择——特别是Core i5和256 GB 固态硬盘版本，此时售价只超过1300美元。

注：本文是基于完整评测的缩减版本，阅读完整的英文评测，请点击这里。

Dell Latitude 12 5285 2-in-1 - 05/06/2017 v6 ^(old)
Bernhard Pechlaner

Chassis

85 / 98 → 87%

Keyboard

87%

Pointing Device

92%

Connectivity

57 / 80 → 71%

Weight

72 / 35-78 → 87%