Notebookcheck

Recensione breve dello Smartphone Lenovo B Smartphone

Florian Wimmer (traduzione a cura di G. De Luca), 04/03/2017

Un Lenovo per chi compra il suo primo smartphone. Lo smartphone Lenovo B è già disponibile per meno di 100 euro (~ $ 108). La sua fotocamera a fuoco fisso o display TN può causare delusioni, ma almeno c'è l'LTE e una batteria sostituibile. Se questo è abbastanza per superare altri smartphone a basso costo, lo vediamo nel seguente test.

Lenovo B (Vibe Serie)
Processore
Mediatek MT6735M
Scheda grafica
Memoria
1024 MB 
Schermo
4.5 pollici 16:9, 854x480 pixel 218 PPI, kapazitiver 2-Punkt-Touchscreen, TN LED, lucido: si
Harddisk
8 GB eMMC Flash, 8 GB 
, 3.75 GB libera
Porte di connessione
1 USB 2.0, Connessioni Audio: 3.5mm Headsetport, Lettore schede: microSD bis 32 GB, Sensori: Lagesensor
Rete
802.11 b/g/n (b/g/n), Bluetooth 4.0, GSM (850/​900/​1800/​1900), UMTS (850/​900/​1900/​2100), LTE (B1/​B3/​B5/​B7/​B8/​B20/​B38/​B40/​B41); Bandbreite (Download/​Upload): 150Mbps/​50Mbps (LTE), 21Mbps/​5,76Mbps (UMTS); SAR-Wert: 1,557 W/kg (Kopf), 1,714 W/kg, Dual SIM, LTE, GPS
Dimensioni
altezza x larghezza x profondità (in mm): 9.9 x 132.5 x 66
Batteria
7.6 Wh, 2000 mAh ioni di litio, removibile, Tempo conversazione 3G (dichiarata dal produttore): 11.3 ore, Standby 3G (dichiarata dal produttore): 170 ore
Sistema Operativo
Android 6.0 Marshmallow
Camera
Fotocamera Principale: 5 MPix LED-Blitz, Festbrennweite
Fotocamera Secondaria: 2 MPix Festbrennweite
Altre caratteristiche
Casse: Lautsprecher an der Rückseite, Tastiera: virtuelles Keyboard, Ladegerät, USB-Kabel, 24 Mesi Garanzia, UKW-Radio, senza ventola
Peso
144 gr, Alimentazione: 70 gr
Prezzo
100 Euro

 

Size Comparison

Networking
iperf3 Client (receive) TCP 1 m 4M x10
Lenovo C2
Mali-T720 MP2, MT6735, 8 GB eMMC Flash
50.5 MBit/s ∼100% +28%
Lenovo Moto E3
Mali-T720, MT6735P, 8 GB eMMC Flash
47 MBit/s ∼93% +19%
Lenovo B
Mali-T720, MT6735M, 8 GB eMMC Flash
39.5 MBit/s ∼78%
iperf3 Client (transmit) TCP 1 m 4M x10
Lenovo C2
Mali-T720 MP2, MT6735, 8 GB eMMC Flash
53.3 MBit/s ∼100% +12%
Lenovo Moto E3
Mali-T720, MT6735P, 8 GB eMMC Flash
49.3 MBit/s ∼92% +3%
Lenovo B
Mali-T720, MT6735M, 8 GB eMMC Flash
47.7 MBit/s ∼89%
GPS Lenovo B: overview
GPS Lenovo B: overview
GPS Lenovo B: junction
GPS Lenovo B: junction
GPS Lenovo B: riverbank
GPS Lenovo B: riverbank
GPS Garmin Edge 500: overview
GPS Garmin Edge 500: overview
GPS Garmin Edge 500: junction
GPS Garmin Edge 500: junction
GPS Garmin Edge 500: riverbank
GPS Garmin Edge 500: riverbank

Confronto immagini

Scegliete una scena e navigate nella prima immagine. Un click cambia lo zoom. Un click sulla immagine zoommata apre quella originale in una nuova finestra. La prima immagine mostra la fotografia ridimensionata del dispositivo di test.

Scene 1Scene 2Scene 3
click per caricare le immagini
297
cd/m²
299
cd/m²
299
cd/m²
300
cd/m²
309
cd/m²
302
cd/m²
302
cd/m²
310
cd/m²
297
cd/m²
Distribuzione della luminosità
X-Rite i1Pro 2
Massima: 310 cd/m² Media: 301.7 cd/m² Minimum: 14.76 cd/m²
Distribuzione della luminosità: 96 %
Al centro con la batteria: 309 cd/m²
Contrasto: 672:1 (Nero: 0.46 cd/m²)
ΔE Color 9.8 | - Ø
ΔE Greyscale 11.5 | - Ø
Gamma: 2.33
Lenovo B
TN LED, 854x480, 4.5
Archos 50 Platinum 4G
IPS, 1280x720, 5
Huawei Y5 II
IPS, 1280x720, 5
LG K4
TN-TFT, 854x480, 4.5
Wiko Jerry
IPS, 854x480, 5
Screen
6%
-2%
3%
15%
Brightness
302
349
16%
443
47%
342
13%
436
44%
Brightness Distribution
96
89
-7%
90
-6%
92
-4%
91
-5%
Black Level *
0.46
0.65
-41%
0.84
-83%
0.44
4%
0.57
-24%
Contrast
672
529
-21%
554
-18%
766
14%
758
13%
Colorchecker DeltaE2000 *
9.8
5.8
41%
7.8
20%
11.4
-16%
7
29%
Greyscale DeltaE2000 *
11.5
5.7
50%
8.4
27%
11
4%
7.6
34%
Gamma
2.33 103%
2.1 114%
2.07 116%
2.19 110%
2.1 114%
CCT
12460 52%
7792 83%
8438 77%
9372 69%
8368 78%

* ... Meglio usare valori piccoli

Screen Flickering / PWM (Pulse-Width Modulation)

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 not detected

In comparison: 57 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 6272 (minimum: 43 - maximum: 142900) Hz was measured.

Tempi di risposta del Display

I tempi di risposta del display mostrano quanto sia veloce lo schermo a cambaire da un colore all'altro. Tempi di risposta lenti poccono creare sovrapposizioni negloi oggetti in movimento. Specialmente i giocatori patiti del 3D dovrebbero usare uno schermo con rempi di risposta bassi.
       Tempi di risposta dal Nero al Bianco
32 ms ... rise ↗ and fall ↘ combined↗ 14 ms Incremento
↘ 18 ms Calo
Lo schermo mostra tempi di risposta lenti nei nostri tests e sarà insoddisfacente per i gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 80 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (26.7 ms).
       Tempo di risposta dal 50% Grigio all'80% Grigio
276 ms ... rise ↗ and fall ↘ combined↗ ms Incremento
↘ ms Calo
Lo schermo mostra tempi di risposta lenti nei nostri tests e sarà insoddisfacente per i gamers.
In comparison, all tested devices range from 0.9 (minimum) to 636 (maximum) ms. » 100 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (42.8 ms).
AnTuTu Benchmark v6 - Total Score (ordina per valore)
Lenovo B
23464 Points ∼10%
Archos 50 Platinum 4G
23657 Points ∼10% +1%
Huawei Y5 II
23795 Points ∼10% +1%
LG K4
22998 Points ∼10% -2%
Wiko Jerry
15185 Points ∼7% -35%
Geekbench 4.0
64 Bit Multi-Core Score (ordina per valore)
Lenovo B
1209 Points ∼4%
Archos 50 Platinum 4G
1206 Points ∼4% 0%
Huawei Y5 II
1573 Points ∼6% +30%
64 Bit Single-Core Score (ordina per valore)
Lenovo B
431 Points ∼8%
Archos 50 Platinum 4G
428 Points ∼8% -1%
Huawei Y5 II
561 Points ∼10% +30%
3DMark
1280x720 offscreen Ice Storm Unlimited Physics (ordina per valore)
Lenovo B
7072 Points ∼10%
Archos 50 Platinum 4G
6902 Points ∼10% -2%
Huawei Y5 II
Points ∼0% -100%
LG K4
7018 Points ∼10% -1%
Wiko Jerry
7748 Points ∼11% +10%
1280x720 offscreen Ice Storm Unlimited Graphics Score (ordina per valore)
Lenovo B
2239 Points ∼0%
Archos 50 Platinum 4G
2681 Points ∼1% +20%
Huawei Y5 II
Points ∼0% -100%
LG K4
2171 Points ∼0% -3%
Wiko Jerry
2481 Points ∼1% +11%
1280x720 offscreen Ice Storm Unlimited Score (ordina per valore)
Lenovo B
2640 Points ∼1%
Archos 50 Platinum 4G
3103 Points ∼2% +18%
Huawei Y5 II
Points ∼0% -100%
LG K4
2565 Points ∼1% -3%
Wiko Jerry
2922 Points ∼1% +11%
GFXBench (DX / GLBenchmark) 2.7
1920x1080 T-Rex HD Offscreen C24Z16 (ordina per valore)
Lenovo B
4.1 fps ∼0%
Archos 50 Platinum 4G
8.7 fps ∼1% +112%
Huawei Y5 II
8.4 fps ∼1% +105%
LG K4
4.1 fps ∼0% 0%
Wiko Jerry
4.4 fps ∼0% +7%
T-Rex HD Onscreen C24Z16 (ordina per valore)
Lenovo B
11 fps ∼2%
Archos 50 Platinum 4G
4.9 fps ∼1% -55%
Huawei Y5 II
15 fps ∼3% +36%
LG K4
11 fps ∼2% 0%
Wiko Jerry
11 fps ∼2% 0%
GFXBench 3.0
off screen Manhattan Offscreen OGL (ordina per valore)
Lenovo B
1.5 fps ∼0%
Archos 50 Platinum 4G
3.6 fps ∼1% +140%
Huawei Y5 II
fps ∼0% -100%
LG K4
1.4 fps ∼0% -7%
on screen Manhattan Onscreen OGL (ordina per valore)
Lenovo B
5.5 fps ∼2%
Archos 50 Platinum 4G
1.2 fps ∼0% -78%
Huawei Y5 II
6.1 fps ∼2% +11%
LG K4
5.8 fps ∼2% +5%
GFXBench 3.1
off screen Manhattan ES 3.1 Offscreen (ordina per valore)
Lenovo B
1 fps ∼0%
Archos 50 Platinum 4G
2.7 fps ∼1% +170%
Huawei Y5 II
fps ∼0% -100%
on screen Manhattan ES 3.1 Onscreen (ordina per valore)
Lenovo B
4.2 fps ∼2%
Archos 50 Platinum 4G
1.2 fps ∼1% -71%
Huawei Y5 II
fps ∼0% -100%
LG K4
4.1 fps ∼2% -2%
PCMark for Android - Work performance score (ordina per valore)
Lenovo B
2125 Points ∼26%
Archos 50 Platinum 4G
2807 Points ∼34% +32%
Huawei Y5 II
3237 Points ∼39% +52%
LG K4
2644 Points ∼32% +24%
Wiko Jerry
2636 Points ∼32% +24%
BaseMark OS II
Web (ordina per valore)
Lenovo B
9 Points ∼1%
Archos 50 Platinum 4G
9 Points ∼1% 0%
Huawei Y5 II
10 Points ∼1% +11%
LG K4
536 Points ∼35% +5856%
Wiko Jerry
530 Points ∼34% +5789%
Graphics (ordina per valore)
Lenovo B
145 Points ∼2%
Archos 50 Platinum 4G
175 Points ∼2% +21%
Huawei Y5 II
283 Points ∼3% +95%
LG K4
141 Points ∼2% -3%
Wiko Jerry
139 Points ∼2% -4%
Memory (ordina per valore)
Lenovo B
311 Points ∼7%
Archos 50 Platinum 4G
354 Points ∼8% +14%
Huawei Y5 II
375 Points ∼8% +21%
LG K4
139 Points ∼3% -55%
Wiko Jerry
290 Points ∼7% -7%
System (ordina per valore)
Lenovo B
799 Points ∼12%
Archos 50 Platinum 4G
838 Points ∼13% +5%
Huawei Y5 II
1094 Points ∼17% +37%
LG K4
816 Points ∼12% +2%
Wiko Jerry
966 Points ∼15% +21%
Overall (ordina per valore)
Lenovo B
136 Points ∼4%
Archos 50 Platinum 4G
148 Points ∼4% +9%
Huawei Y5 II
183 Points ∼5% +35%
LG K4
304 Points ∼8% +124%
Wiko Jerry
379 Points ∼10% +179%

Legenda

 
Lenovo B Mediatek MT6735M, ARM Mali-T720, 8 GB eMMC Flash
 
Archos 50 Platinum 4G Mediatek MT6735, ARM Mali-T720, 8 GB eMMC Flash
 
Huawei Y5 II Mediatek MT6735, ARM Mali-T720 MP2, 8 GB eMMC Flash
 
LG K4 Mediatek MT6735, ARM Mali-T720, 8 GB eMMC Flash
 
Wiko Jerry Mediatek MT6580M, ARM Mali-400 MP2, 16 GB eMMC Flash
Mozilla Kraken 1.1 - Total Score (ordina per valore)
Lenovo B
18130 ms * ∼30%
Archos 50 Platinum 4G
19092.2 ms * ∼32% -5%
Huawei Y5 II
12505 ms * ∼21% +31%
LG K4
18213.5 ms * ∼31% -0%
Wiko Jerry
14922.6 ms * ∼25% +18%
Octane V2 - Total Score (ordina per valore)
Lenovo B
1929 Points ∼4%
Archos 50 Platinum 4G
2122 Points ∼4% +10%
Huawei Y5 II
2707 Points ∼5% +40%
LG K4
2049 Points ∼4% +6%
Wiko Jerry
2075 Points ∼4% +8%
JetStream 1.1 - 1.1 Total Score (ordina per valore)
Lenovo B
12.64 Points ∼4%
Archos 50 Platinum 4G
12.755 Points ∼4% +1%
Huawei Y5 II
18.47 Points ∼6% +46%
LG K4
13 Points ∼4% +3%
Wiko Jerry
14 Points ∼4% +11%

* ... Meglio usare valori piccoli

AndroBench 3-5
Sequential Write 256KB SDCard (ordina per valore)
Lenovo B
16.8 MB/s ∼19%
Archos 50 Platinum 4G
15.58 MB/s ∼18% -7%
Huawei Y5 II
18.03 MB/s ∼21% +7%
LG K4
18.7 MB/s ∼21% +11%
Wiko Jerry
19.12 MB/s ∼22% +14%
Sequential Read 256KB SDCard (ordina per valore)
Lenovo B
24.16 MB/s ∼25%
Archos 50 Platinum 4G
31.85 MB/s ∼33% +32%
Huawei Y5 II
29.47 MB/s ∼31% +22%
LG K4
28.52 MB/s ∼30% +18%
Wiko Jerry
40.91 MB/s ∼42% +69%
Random Write 4KB (ordina per valore)
Lenovo B
4.2 MB/s ∼3%
Archos 50 Platinum 4G
4.35 MB/s ∼3% +4%
Huawei Y5 II
6 MB/s ∼4% +43%
LG K4
4.97 MB/s ∼3% +18%
Wiko Jerry
6.4 MB/s ∼4% +52%
Random Read 4KB (ordina per valore)
Lenovo B
12.4 MB/s ∼7%
Archos 50 Platinum 4G
14.31 MB/s ∼8% +15%
Huawei Y5 II
27.3 MB/s ∼16% +120%
LG K4
16.05 MB/s ∼9% +29%
Wiko Jerry
14.97 MB/s ∼9% +21%
Sequential Write 256KB (ordina per valore)
Lenovo B
8.1 MB/s ∼4%
Archos 50 Platinum 4G
7.56 MB/s ∼4% -7%
Huawei Y5 II
21.6 MB/s ∼10% +167%
LG K4
8.07 MB/s ∼4% 0%
Wiko Jerry
12.11 MB/s ∼6% +50%
Sequential Read 256KB (ordina per valore)
Lenovo B
115.6 MB/s ∼15%
Archos 50 Platinum 4G
125.37 MB/s ∼16% +8%
Huawei Y5 II
173.3 MB/s ∼22% +50%
LG K4
120.84 MB/s ∼15% +5%
Wiko Jerry
132.81 MB/s ∼17% +15%
Asphalt 8: Airborne
 SettaggiValore
 high10 fps
Temple Run 2
 SettaggiValore
 default59 fps
Carico massimo
 35.3 °C35.6 °C33.9 °C 
 35 °C34.5 °C38.5 °C 
 34.3 °C34.4 °C36.3 °C 
Massima: 38.5 °C
Media: 35.3 °C
33.6 °C35.3 °C36.3 °C
33.6 °C34.9 °C36.6 °C
30.7 °C34.5 °C35.9 °C
Massima: 36.6 °C
Media: 34.6 °C
Alimentazione (max)  29.4 °C | Temperatura della stanza 21.4 °C | Voltcraft IR-260
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2031.638.42525.438.63125.333.24032.9315033.6386331.6338028.432.71002727.312520.826.51602225.720021.331.225020.836.431521.246.840019.45550019.561.163017.764.780017.968100017.873.4125017.375.2160017.474.2200016.773.8250017.270.9315018.267.8400017.966.2500017.663.6630017.762.6800017.859.41000017.955.61250018.153.31600018.244.2SPL3082.3N1.346.4median 17.9Lenovo Bmedian 61.1Delta1.311.832.433.931.330.231.731.82632.939.440.236.235.328.629.825.428.321.33223.327.822.530.422.437.221.342.318.446.217.555.417.557.317.262.416.867.517.368.317.467.416.676.617.375.617.675.217.679.517.779.817.477.417.772.917.967.918.158.118.140.429.8871.359.8median 17.7Huawei Y5 IImedian 62.41.617.2hearing rangehide median Pink Noise
Lenovo B audio analysis

(+) | speakers can play relatively loud (82.31 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 28.8% lower than median
(±) | linearity of bass is average (10.9% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 8.6% higher than median
(±) | linearity of mids is average (8.7% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 4.7% away from median
(+) | highs are linear (6% delta to prev. frequency)
Overall 100 - 16.000 Hz
(-) | overall sound is not linear (30.1% difference to median)
Compared to same class
» 73% of all tested devices in this class were better, 8% similar, 18% worse
» The best had a delta of 14%, average was 26%, worst was 44%
Compared to all devices tested
» 86% of all tested devices were better, 5% similar, 9% worse
» The best had a delta of 3%, average was 22%, worst was 53%

Huawei Y5 II audio analysis

(+) | speakers can play relatively loud (87 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 29.4% lower than median
(±) | linearity of bass is average (9% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 7.3% higher than median
(±) | linearity of mids is average (10.1% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 13% higher than median
(+) | highs are linear (5.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(-) | overall sound is not linear (34.3% difference to median)
Compared to same class
» 91% of all tested devices in this class were better, 3% similar, 6% worse
» The best had a delta of 14%, average was 26%, worst was 44%
Compared to all devices tested
» 95% of all tested devices were better, 2% similar, 4% worse
» The best had a delta of 3%, average was 22%, worst was 53%

Consumo di corrente
Off / Standbydarklight 0.05 / 0.12 Watt
Idledarkmidlight 0.64 / 0.96 / 1.33 Watt
Sotto carico midlight 4.59 / 4.63 Watt
 color bar
Leggenda: min: dark, med: mid, max: light        Metrahit Energy
Lenovo B
2000 mAh
Archos 50 Platinum 4G
2200 mAh
Huawei Y5 II
2200 mAh
LG K4
1940 mAh
Wiko Jerry
2000 mAh
Power Consumption
-17%
-10%
-25%
-46%
Idle Minimum *
0.64
0.59
8%
0.54
16%
1.15
-80%
0.8
-25%
Idle Average *
0.96
1.68
-75%
1.58
-65%
1.76
-83%
2.02
-110%
Idle Maximum *
1.33
1.79
-35%
1.7
-28%
1.82
-37%
2.19
-65%
Load Average *
4.59
4.22
8%
2.98
35%
2.71
41%
5.02
-9%
Load Maximum *
4.63
4.26
8%
4.98
-8%
3.15
32%
5.52
-19%

* ... Meglio usare valori piccoli

Autonomia della batteria
Navigazione WiFi v1.3
7ore 22minuti
Lenovo B
2000 mAh
Archos 50 Platinum 4G
2200 mAh
Huawei Y5 II
2200 mAh
LG K4
1940 mAh
Wiko Jerry
2000 mAh
Autonomia della batteria
-13%
14%
2%
7%
Reader / Idle
1102
WiFi v1.3
442
384
-13%
503
14%
452
2%
475
7%
Load
253

Pro

+ case ergonomico
+ batteria sganciabile
+ cassa decente
+ qualità voce passabile
+ modulo GPS reattivo
+ LTE

Contro

- Display TN low-quality con tinta blu
- angoli di visuale limitati
- fotocamera sotto la media
- performance limitate
- tempo di ricarica lungo

E' stato subito chiaro che un prezzo budget di meno di 100 euro (~ $ 108) non lascia molte opportunità per Lenovo di utilizzare componenti ad alta qualità. Tuttavia, ricorrendo a un pannello TN a bassa risoluzione con scarsa luminosità e una palese tinta blu, insieme a una fotocamera che produce immagini prevalentemente sfocate e sbiadite, il risultato è davvero misero - anche un dispositivo di classe economica! Le sue performance collocano il Lenovo B quasi alla pari con la concorrenza, così come la durata della batteria, con la possibilità in più di sganciare la batteria. Il tempo di ricarica lungo tuttavia non impressiona.

Sebbene le richieste e le aspettative nella classe entry-level siano piuttosto moderate, non possiamo fare a meno di notare che la competizione offre di più per lo stesso prezzo: maggiore memoria, una migliore fotocamera o un migliore display. Le sue dimensioni compatte rendono il Lenovo B ben gestibile per le mani dei bambini. Potrebbe essere un prodotto solido, ma sicuramente non fissa nuovi standard nella sua classe.

 

Nota: si tratta di una recensione breve, con alcune sezioni non tradotte, per la versione integrale in inglese guardate qui.

Lenovo B smartphone. Test device made available by Notebooksbilliger.de
Lenovo B smartphone. Test device made available by Notebooksbilliger.de

It was immediately clear that a budget price of less than 100 Euros (~$108) doesn't leave much opportunity for the Lenovo to use high-value components. However, resorting to a low-res TN panel with poor brightness and a blatant blue tint, together with a camera that produces mainly blurry, faded images, is nothing else but meager -- even for the budget class! Its performance found the Lenovo B quite on par with the competition, as did the battery life, with an extra feature to swap the battery out. Its long charging time didn't impress, though.

While demands and expectations in this entry-class might be rather moderate, we can't help noticing that the competition provides more bang for the buck: more memory, better camera or better display. Its compact size makes the Lenovo B well manageable for children's hands. It might be a solid product, but it definitely sets no new standards in its class.  

Lenovo B - 03/18/2017 v6
Florian Wimmer

Chassis
71%
Tastiera
61 / 75 → 82%
Dispositivo di puntamento
79%
Connettività
30 / 60 → 49%
Peso
93%
Batteria
90%
Display
77%
Prestazioni di gioco
4 / 63 → 6%
Prestazioni Applicazioni
18 / 70 → 25%
Temperatura
89%
Rumorosità
100%
Audio
60 / 91 → 66%
Fotocamera
35%
Media
62%
73%
Smartphone - Media ponderata

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> Recensioni e prove de portatili e telefoni cellulari > Recensioni e prove > Recensioni e prove > Recensione breve dello Smartphone Lenovo B Smartphone
Florian Wimmer, 2017-04- 3 (Update: 2017-04- 3)