Recensione Breve del Convertibile Trekstor SurfTab duo W3
For the original German review, see here.
Trekstor's SurfTab duo W3 is an 11.6-inch convertible - to be more precise it is a member of the detachable subcategory, i.e. a convertible with a detachable display. Or seen the other way around: a tablet with connectable keyboard. An Atom processor from the Cherry Trail generation operates inside the device. The convertible finds rivals in devices like Medion's Akoya E2215T, Lenovo's IdeaPad MIIX 310-10ICR, and HP's x360 310 G1.
Case and Connectivity
The relatively low purchase price does not involve forsaking high-quality materials. The tablet part's back and the keyboard dock's upper side are made of aluminum. The other components are made from plastic. The convertible's build is not conspicuous. Its build is solid, and the device does not exhibit any weaknesses in terms of stability.
The interface diversity has to be criticized here. Trekstor installs one micro-USB 2.0 and one micro-USB 3.0 into the tablet. The USB charger is connected to the first. The second port is intended for connecting USB devices. Trekstor includes an adapter (micro-USB 3.0-to-Type A slot). We deem both micro-USB ports as illogical. Trekstor should have installed Type-C USB ports to begin with. This would have led to the same result and the tablet would have been future-proof at least in this regard.
Trekstor's USB 3.0 solution is not convincing, either. A stable connection cannot be set up between the included adapter and micro-USB 3.0 port. The slightest movement or touching the adapter could interrupt the convertible's contact to the connected device - for example, a USB hard drive.
Trekstor furnishes the SurfTab with the 32-bit version of Windows 10 Home. This version is easier on resources and is therefore often used in low-performance devices. Thus, no 64-bit applications can be executed. This is not a problem as almost every application has a 32-bit version.
Input Devices
The keyboard dock provides an unlit chiclet keyboard. The flat, lightly roughened keys have a short drop and defined pressure point. The keys' resistance is satisfactory. The keyboard at most yields marginally when typing on it. This was not annoying. The dock's metal upper side apparently pays off here. In total, Trekstor delivers a surprisingly decent keyboard. Even a small, multi-touch ClickPad has found a place in the keyboard dock (approx. 8.2 x 4.6 cm). The pad's sleek surface does not stop the fingers from gliding over it. It has a short drop and clear pressure point.
The touchscreen supports 10 touch points. We did not experience any problems with it, and it responded instantaneously to inputs. It can be used with fingers and with an active stylus. We successfully tested the latter with a stylus by Hama.
Display
The SurfTab's 11.6-inch touchscreen has a native resolution of 1920x1080 pixels. The panel offers a good contrast (1028:1) alongside an only poor brightness (235.2 cd/m²). Good: The screen never displayed PWM-flickering.
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Distribuzione della luminosità: 80 %
Al centro con la batteria: 212 cd/m²
Contrasto: 1028:1 (Nero: 0.25 cd/m²)
ΔE Color 7.98 | 0.5-29.43 Ø4.91
ΔE Greyscale 7.87 | 0.5-98 Ø5.2
84% sRGB (Argyll 1.6.3 3D)
55% AdobeRGB 1998 (Argyll 1.6.3 3D)
61.3% AdobeRGB 1998 (Argyll 2.2.0 3D)
83.9% sRGB (Argyll 2.2.0 3D)
63% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.3
| Trekstor SurfTab duo W3 IPS, 1920x1080, 11.6" | Medion Akoya E2215T IPS, 1920x1080, 11.6" | HP x360 310 G1 TN, 1366x768, 11.6" | Acer Switch V 10 SW5-017-196Q IPS, 1280x800, 10.1" | HP x2 210 G1 IPS, 1280x800, 10.1" | Lenovo IdeaPad MIIX 310-10ICR IPS, 1280x800, 10.1" | |
|---|---|---|---|---|---|---|
| Display | -19% | -37% | -13% | -28% | -14% | |
| Display P3 Coverage | 63 | 48.12 -24% | 37.47 -41% | 52.5 -17% | 42.77 -32% | 51.1 -19% |
| sRGB Coverage | 83.9 | 71.7 -15% | 56.4 -33% | 76.3 -9% | 63.7 -24% | 75.2 -10% |
| AdobeRGB 1998 Coverage | 61.3 | 49.78 -19% | 38.71 -37% | 54.1 -12% | 44.22 -28% | 52.7 -14% |
| Response Times | -7% | -21% | -2% | -21% | -5% | |
| Response Time Grey 50% / Grey 80% * | 37 ? | 31 ? 16% | 43 ? -16% | 29 ? 22% | 43 ? -16% | 31.6 ? 15% |
| Response Time Black / White * | 20 ? | 26 ? -30% | 25 ? -25% | 25 ? -25% | 25 ? -25% | 24.8 ? -24% |
| PWM Frequency | 50 ? | 396 ? | 877 ? | 50 ? | 69.4 | |
| Screen | 9% | -59% | 16% | 8% | -4% | |
| Brightness middle | 257 | 338 32% | 199 -23% | 270 5% | 313 22% | 251.9 -2% |
| Brightness | 235 | 309 31% | 186 -21% | 239 2% | 295 26% | 233 -1% |
| Brightness Distribution | 80 | 76 -5% | 76 -5% | 82 3% | 84 5% | 83 4% |
| Black Level * | 0.25 | 0.39 -56% | 0.8 -220% | 0.21 16% | 0.21 16% | 0.348 -39% |
| Contrast | 1028 | 867 -16% | 249 -76% | 1286 25% | 1490 45% | 724 -30% |
| Colorchecker dE 2000 * | 7.98 | 3.94 51% | 11.92 -49% | 3.01 62% | 6.79 15% | 6.35 20% |
| Colorchecker dE 2000 max. * | 12.25 | 9.96 19% | 20.52 -68% | 4.63 62% | 14.11 -15% | 11.15 9% |
| Greyscale dE 2000 * | 7.87 | 2.54 68% | 12.92 -64% | 7.66 3% | 6.78 14% | 7.09 10% |
| Gamma | 2.3 96% | 2.38 92% | 2.04 108% | 1.45 152% | 2.26 97% | 2.02 109% |
| CCT | 8815 74% | 6902 94% | 13589 48% | 6665 98% | 6708 97% | 8590 76% |
| Color Space (Percent of AdobeRGB 1998) | 55 | 46 -16% | 36 -35% | 49 -11% | 41 -25% | 52.69 -4% |
| Color Space (Percent of sRGB) | 84 | 71 -15% | 56 -33% | 76 -10% | 63 -25% | |
| Media totale (Programma / Settaggio) | -6% /
1% | -39% /
-50% | 0% /
8% | -14% /
-3% | -8% /
-6% |
* ... Meglio usare valori piccoli
Sfarfallio dello schermo / PWM (Pulse-Width Modulation)
| flickering dello schermo / PWM non rilevato | ||
In confronto: 53 % di tutti i dispositivi testati non utilizza PWM per ridurre la luminosita' del display. Se è rilevato PWM, una media di 8705 (minimo: 5 - massimo: 343500) Hz è stata rilevata. | ||
The panel has a DeltaE 2000 color shift of 7.98 in delivery state. A rate less than 3 would be desirable. The screen exhibits a slight bluish tint.
Tempi di risposta del Display
| ↔ Tempi di risposta dal Nero al Bianco | ||
|---|---|---|
| 20 ms ... aumenta ↗ e diminuisce ↘ combinato | ↗ 6 ms Incremento |  |
| ↘ 14 ms Calo | ||
| Lo schermo mostra buoni tempi di risposta durante i nostri tests, ma potrebbe essere troppo lento per i gamers competitivi. In confronto, tutti i dispositivi di test variano da 0.1 (minimo) a 240 (massimo) ms. » 40 % di tutti i dispositivi è migliore. Questo significa che i tempi di risposta rilevati sono simili alla media di tutti i dispositivi testati (20.9 ms). | ||
| ↔ Tempo di risposta dal 50% Grigio all'80% Grigio | ||
| 37 ms ... aumenta ↗ e diminuisce ↘ combinato | ↗ 16 ms Incremento |  |
| ↘ 21 ms Calo | ||
| Lo schermo mostra tempi di risposta lenti nei nostri tests e sarà insoddisfacente per i gamers. In confronto, tutti i dispositivi di test variano da 0.165 (minimo) a 636 (massimo) ms. » 49 % di tutti i dispositivi è migliore. Questo significa che i tempi di risposta rilevati sono peggiori rispetto alla media di tutti i dispositivi testati (32.8 ms). | ||
Trekstor furnishes the SurfTab with a viewing-angle stable IPS panel. Thus, the screen is legible from every position. The convertible is not really outdoor-suitable. The panel's reflective surface and low brightness are noticed here. The latter is even a bit lower in battery mode than in AC mode.
Performance
Trekstor's SurfTab duo W3 is an 11.6-inch convertible that is suitable for working with simple office and Internet applications. The device is currently priced at approximately 230 to 250 Euros (~$245 to ~$267). Other configurations do not exist.
Processor
Intel's Atom (Cherry Trail) quad-core processor is inside the device. The CPU is designed for simple office and Internet applications. Thanks to its low TDP (less than 4 watts), the SoC can be cooled passively, and this is also implemented. The Atom clocks at a base speed of 1.44 GHz, which can be boosted up to 1.84 GHz via Turbo. Turbo is utilized in both AC and battery modes. The multithread tests that we performed were performed at 1.6 GHz, and the single-thread tests at 1.6 to 1.84 GHz.
| Cinebench R10 | |
| Rendering Multiple CPUs 32Bit | |
| Acer Switch V 10 SW5-017-196Q | |
| Trekstor SurfTab duo W3 | |
| Medion Akoya E2215T | |
| Lenovo IdeaPad MIIX 310-10ICR | |
| HP x2 210 G1 | |
| Rendering Single 32Bit | |
| Acer Switch V 10 SW5-017-196Q | |
| Trekstor SurfTab duo W3 | |
| Medion Akoya E2215T | |
| Lenovo IdeaPad MIIX 310-10ICR | |
| HP x2 210 G1 | |
| Geekbench 3 | |
| 32 Bit Single-Core Score | |
| Acer Switch V 10 SW5-017-196Q | |
| Trekstor SurfTab duo W3 | |
| Medion Akoya E2215T | |
| 32 Bit Multi-Core Score | |
| Acer Switch V 10 SW5-017-196Q | |
| Trekstor SurfTab duo W3 | |
| Medion Akoya E2215T | |
| Sunspider - 1.0 Total Score | |
| HP x2 210 G1 | |
| Trekstor SurfTab duo W3 | |
| JetStream 1.1 - Total Score | |
| Acer Switch V 10 SW5-017-196Q | |
| HP x2 210 G1 | |
| Medion Akoya E2215T | |
| Trekstor SurfTab duo W3 | |
| Mozilla Kraken 1.1 - Total | |
| Lenovo IdeaPad MIIX 310-10ICR | |
| Trekstor SurfTab duo W3 | |
| Medion Akoya E2215T | |
| Octane V2 - Total Score | |
| Medion Akoya E2215T | |
| Trekstor SurfTab duo W3 | |
| Lenovo IdeaPad MIIX 310-10ICR | |
* ... Meglio usare valori piccoli
System Performance
The convertible does the jobs that it has been made for smoothly. The computing power of the installed SoC suffices for basic office and Internet applications. The SoC's low performance is evident when opening websites that are loaded with advertisements. The convertible needs a while here. A look at our comparison chart shows that the SurfTab and Medion's Akoya E2215T clearly lag behind the competition. However, it would be wrong to assume that the processors in the devices clock at a much lower speed. Both devices are furnished with the 32-bit version of Windows 10. The other convertibles come with the 64-bit version. The outcomes reflect this.
| PCMark 8 Home Score Accelerated v2 | 1246 punti | |
Aiuto | ||
| PCMark 8 - Home Score Accelerated v2 | |
| Acer Switch V 10 SW5-017-196Q | |
| HP x360 310 G1 | |
| Lenovo IdeaPad MIIX 310-10ICR | |
| HP x2 210 G1 | |
| Medion Akoya E2215T | |
| Trekstor SurfTab duo W3 | |
Storage Device
An eMMC module with a capacity of 32 GB is installed for storing data. Roughly 18 GB can be used freely. The storage device's transfer rates are on a normal level for an eMMC storage device. The storage capacity can be expanded via a micro-SD card.
| Trekstor SurfTab duo W3 32 GB eMMC Flash | Medion Akoya E2215T 64 GB eMMC Flash | HP x360 310 G1 Toshiba MQ01ABF050 | Acer Switch V 10 SW5-017-196Q 64 GB eMMC Flash | HP x2 210 G1 64 GB eMMC Flash | Lenovo IdeaPad MIIX 310-10ICR 64 GB eMMC Flash | |
|---|---|---|---|---|---|---|
| CrystalDiskMark 3.0 | 157% | -25% | 475% | 241% | 266% | |
| Read Seq | 142.8 | 169.6 19% | 99.5 -30% | 153.9 8% | 134.1 -6% | 151.9 6% |
| Write Seq | 44.24 | 39.77 -10% | 102.9 133% | 101.1 129% | 66.1 49% | 87.3 97% |
| Read 512 | 125.4 | 155.3 24% | 34.45 -73% | 136.2 9% | 112.9 -10% | 144.5 15% |
| Write 512 | 16.9 | 27.45 62% | 42.7 153% | 91.5 441% | 57.7 241% | 58 243% |
| Read 4k | 7.82 | 13.09 67% | 0.439 -94% | 12.58 61% | 15.79 102% | 9.35 20% |
| Write 4k | 1.423 | 7.915 456% | 0.013 -99% | 12.38 770% | 10.06 607% | 12.26 762% |
| Read 4k QD32 | 11.04 | 15.11 37% | 0.851 -92% | 23.81 116% | 35.31 220% | 29 163% |
| Write 4k QD32 | 1.435 | 10.05 600% | 0.033 -98% | 33.93 2264% | 11.84 725% | 13.18 818% |
Graphics Card
Intel's HD Graphics from the Cherry Trail generation is responsible for video output. It supports DirectX 12 and clocks at speeds of up to 500 MHz. The 3DMark benchmark outcomes range on a normal level for this GPU.
| 3DMark 11 Performance | 322 punti | |
Aiuto | ||
| 3DMark 11 - 1280x720 Performance GPU | |
| Acer Switch V 10 SW5-017-196Q | |
| Lenovo IdeaPad MIIX 310-10ICR | |
| Medion Akoya E2215T | |
| Trekstor SurfTab duo W3 | |
| HP x2 210 G1 | |
| HP x360 310 G1 | |
Gaming Performance
The SurfTab's hardware is much too weak for games like FIFA 17. However, many casual games that can be played on the convertible are found in the Windows Store.
| basso | medio | alto | ultra | |
|---|---|---|---|---|
| Trackmania Nations Forever (2008) | 92.6 | 21.3 | 9.6 |
Emissions and Energy Management
System Noise
The convertible is cooled passively, and thus there is no noise-making fan. However, the tablet part occasionally produces an electronic sizzling noise.
Temperature
The convertible performed our stress test (Prime95 and Furmark run for at least one hour) in the same manner in AC and battery modes. The processor clocks at 480 GHz. The graphics unit starts at 400 MHz at the beginning of the test and throttles its speed to 200 MHz after five minutes. The device does not get excessively hot. The temperatures remained below 40 °C on all measuring points during the stress test.
(+) La temperatura massima sul lato superiore è di 37.6 °C / 100 F, rispetto alla media di 35.3 °C / 96 F, che varia da 19.6 a 60 °C per questa classe Convertible.
(+) Il lato inferiore si riscalda fino ad un massimo di 37.8 °C / 100 F, rispetto alla media di 36.8 °C / 98 F
(+) In idle, la temperatura media del lato superiore è di 27.6 °C / 82 F, rispetto alla media deld ispositivo di 30.3 °C / 87 F.
(+) I poggiapolsi e il touchpad sono piu' freddi della temperatura della pelle con un massimo di 31.6 °C / 88.9 F e sono quindi freddi al tatto.
(-) La temperatura media della zona del palmo della mano di dispositivi simili e'stata di 28.1 °C / 82.6 F (-3.5 °C / -6.3 F).
Speakers
The stereo speakers are situated on the tablet part's left. They produce a thin sound that hardly reproduces any bass. Headphones or external speakers have to be connected for a better sound experience.
Trekstor SurfTab duo W3 analisi audio
(±) | potenza degli altiparlanti media ma buona (78 dB)
Bassi 100 - 315 Hz
(-) | quasi nessun basso - in media 31.3% inferiori alla media
(+) | bassi in lineaa (2.6% delta rispetto alla precedente frequenza)
Medi 400 - 2000 Hz
(±) | medi ridotti - circa 7.8% inferiori alla media
(±) | linearità dei medi adeguata (14.1% delta rispetto alla precedente frequenza)
Alti 2 - 16 kHz
(±) | alti elevati - circa 8% superiori alla media
(±) | la linearità degli alti è media (11.4% delta rispetto alla precedente frequenza)
Nel complesso 100 - 16.000 Hz
(-) | suono nel complesso non lineare (33.4% di differenza rispetto alla media
Rispetto alla stessa classe
» 92% di tutti i dispositivi testati in questa classe è stato migliore, 2% simile, 6% peggiore
» Il migliore ha avuto un delta di 6%, medio di 21%, peggiore di 57%
Rispetto a tutti i dispositivi testati
» 91% di tutti i dispositivi testati in questa classe è stato migliore, 1% similare, 7% peggiore
» Il migliore ha avuto un delta di 4%, medio di 25%, peggiore di 134%
Apple MacBook 12 (Early 2016) 1.1 GHz analisi audio
(+) | gli altoparlanti sono relativamente potenti (83.6 dB)
Bassi 100 - 315 Hz
(±) | bassi ridotti - in media 11.3% inferiori alla media
(±) | la linearità dei bassi è media (14.2% delta rispetto alla precedente frequenza)
Medi 400 - 2000 Hz
(+) | medi bilanciati - solo only 2.4% rispetto alla media
(+) | medi lineari (5.5% delta rispetto alla precedente frequenza)
Alti 2 - 16 kHz
(+) | Alti bilanciati - appena 2% dalla media
(+) | alti lineari (4.5% delta rispetto alla precedente frequenza)
Nel complesso 100 - 16.000 Hz
(+) | suono nel complesso lineare (10.2% differenza dalla media)
Rispetto alla stessa classe
» 6% di tutti i dispositivi testati in questa classe è stato migliore, 2% simile, 92% peggiore
» Il migliore ha avuto un delta di 5%, medio di 19%, peggiore di 53%
Rispetto a tutti i dispositivi testati
» 4% di tutti i dispositivi testati in questa classe è stato migliore, 1% similare, 95% peggiore
» Il migliore ha avuto un delta di 4%, medio di 25%, peggiore di 134%
Frequency diagram in comparison (checkboxes above can be turned on/off)
Power Consumption
No irregularities were discovered in terms of power consumption. The energy requirement was on a normal level for this hardware platform over the entire load range. The USB charger has a nominal output of 10 watts.
| Off / Standby |   0.7 / 2.8 Watt |
| Idle |  2 / 2.2 / 2.7 Watt |
| Sotto carico |
8.5 / 8.4 Watt |
    
| |
Leggenda:
min: ,
med: ,
max: Metrahit Energy | |
Battery Runtime
Our practical Wi-Fi test simulates the load needed for opening websites. The "Balanced" profile is enabled, the energy-saving features are disabled, and the screen's brightness is set to approximately 150 cd/m². The SurfTab achieves a runtime of 4:54 hours - a poor outcome. We expect a minimum runtime of 7 to 8 hours from a device like the SurfTab.
The short runtime is due to the battery. It has a capacity of just 8.2 Wh. The competition has three to four times as much. The battery needs almost 5 hours to be recharged from 0 to 100% when the device is shut down. It does not supply the convertible with power, i.e. as soon as the battery is recharged the device begins to discharge again. The battery is depleted to 95% after approximately 30 minutes (idle, maximum screen brightness). It recharges when the charger is still connected.
| Battery Runtime - WiFi Websurfing | |
| HP x360 310 G1 | |
| Lenovo IdeaPad MIIX 310-10ICR | |
| HP x2 210 G1 | |
| Acer Switch V 10 SW5-017-196Q | |
| Medion Akoya E2215T | |
| Trekstor SurfTab duo W3 | |
Pro
Contro
Verdict
Il Trekstor SurfTab duo W3 è un convertibile da 11.6" Windows realizzato per applicazioni da ufficio e internet. Il dispositivo si scalda poco ed è silenzioso. Tuttavia, si sente un rumore elettronico dall'interno a volte. Il dispsitivo non ha molto spazio di archiviazione, possono essere usati 17.6 GB dei 32 GB disponibili. Tuttavia, solo un massimo di 7 GB dovrebbe essere poter usato in quanto Windows 10 richiede 10 GB di spazio libero per gli updates di sistema. Pertanto raccomandiamo di inserire una scheda micro-SD card.
La keyboard dock fa una buona impressione. La tastiera è adatta anche a chi scrive molto. Trekstor è una buona macchina per scrivere e navigare adatta agli studenti. Sfortunatamente, il SurfTab ha una pecca fondamentale: l'autonomia. Il convertibile arriva a meno di 5 ore nel nostro test Wi-Fi test - troppo poco per scuola o università. D'altro canto lo schermo ha buoni angoli di visuale e buon contrasto, ma la luminosità è troppo bassa .
Un economico convertibile da 11.6" da usare a casa questo è il Trekstor SurfTab duo W3.
Tuttavia, Trekstor commette degli errori che andrebbero evitati anche con un prezzo così basso. Innanzitutto la porta micro-USB 3.0 poco affidabile che non ha una connessione stabile. Il produttore avrebbe dovuto puntare su una USB Type-C. Ad ogni modo Trekstor include un adattatore. Inoltre, la ricarica della batteria richiede troppo tempo.
Nota: si tratta di una recensione breve, con alcune sezioni non tradotte, per la versione integrale in inglese guardate qui.
Trekstor SurfTab duo W3
- 01/27/2017 v6 (old)
Sascha Mölck
Price comparison
