Samsung Galaxy Note 4 (Samsung SM-N9106W/ Galaxy Note IV) Charcoal Black
Mo ta san pham: Samsung Galaxy Note 4 (Samsung SM-N9106W/ Galaxy Note IV) Charcoal Black
Khi noi den phabet (smartphone man hinh lon) thi khong the khong nhac den dong Galaxy Note cua Samsung va gan day nhat do chinh la 'sieu pham' Note 4.
Luc moi ra mat phien ban dau tien cach day 4 nam, Note nhan duoc rat nhieu cham biem ve kich thuoc qua co cua no. Tuy nhien theo thoi gian, cung voi xu huong su dung dien thoai man hinh lon va dac trung cay but thong minh, Galaxy Note da chung minh cho moi nguoi thay Samsung khong phai la ke chi mai theo sau hoc hoi nguoi khac ma hang nay cung la nguoi tao ra mot dinh nghia moi ve dien thoai de gio day no da tro thanh mot trao luu de nhieu hang khac cho ra doi cac phabet cua rieng minh (Sony Z Ultra, HTC One Max, iPhone 6 Plus…).
Nhieu nguoi van thuong bao, mot nam Samsung tung ra 2 dong san pham flagship, mot la Galaxy S va hai la Galaxy Note. Trong khi nhiem vu cua chiec Galaxy S la dua ra nhung cong nghe moi, nhung dieu thu vi moi cua Samsung thi Galaxy Note hoan thien nhung khuyet diem cua moi dong S do. That vay, neu nhu Galaxy S5 da tung phai nhan rat nhieu ‘gach da’ nhat la mang thiet ke thi gio day rat kho de co the noi dieu tuong tu voi Galaxy Note 4.
Video gioi thieu Samsung Galaxy Note 4:
Ve thiet ke
Khi cam Note 4 tren tay, co the hieu tai sao toi tung co nhan xet trong bai danh gia chiec Galaxy Alpha rang no (Alpha) la chiec dien thoai se tao ra mot su thay doi lon trong thiet ke cua Samsung. Ro rang, tat ca nhung tinh hoa thiet ke cua Alpha deu duoc ap dung vao Note 4 mot cach chinh chu va hoan thien hon.

Sau Alpha thi Note 4 la chiec dien thoai thu 2 su dung thiet ke vien kim loai (nhom) vat kim cuong. Chat lieu moi nay dem lai cam giac hoan toan khac voi bat ky san pham truoc day, ke ca Galaxy Note 3 va Galaxy S5. No khien cho Note 4 co mot ve ngoai that sang trong, tinh te. Cam giac do se cang that hon khi ban cam may tren tay. Cac chi tiet tren vien kim loai nhu nut nguon, nut tang giam am luong, lo micro, lo cam headphone va vet vat o hai canh ben deu duoc lam can than, ti mi. Nhuoc diem duy nhat cua thiet ke nay chinh la viec chat lieu kim loai vat se tao ra cam giac hoi can vao tay chu khong nhe nhang nhu vien benzel nhua truoc kia.

Mat sau van giu nguyen am huong cua Galaxy Note 3 voi nap nhua van gia da nhung da loai bo di cac vet gia chi khau. Thuc te khi su dung, mat lung cua Galaxy Note 4 du dep nhung lai lam mat di cam giac rat nhieu so voi mat ‘da’ cua Galaxy Note 3, cam nhan khi cham vao giong nhu nhua hon la ‘da’. Mat lung nay cung kha tron, vi vay nguoi dung can chu y can than khi thao tac voi Galaxy Note 4 de tranh nhung rui ro co the xay den. Ngoai ra, mat phia sau con bao gom camera ‘loi truyen thong’ cua Samsung, den flash, cam bien van tay va khe loa. That tinh, toi khong thich viec khe loa bi day tu day may, gan cong sac xuong mat sau, ly do la no se khien cho am thanh bi giam do lon va cung vi vi tri do lam xau toan bo mat sau cua may.
Mat truoc Galaxy Note 4 theo kieu thiet ke truyen thong voi nut home cung, hai nut cam ung back va da nhiem, dong chu Samsung, khe tai nghe va mat van soc ngang. Mat kinh tren Note 4 duoc vat cong nhe (Samsung goi la 2,5D) om tu kinh xuong phan vien may giong het nhu tren iPhone 6 va Lumia 930. Vi day la lan dau thuc hien cong nghe nay nen cac duong noi giua vien may va mat kinh van chua duoc hoan thien tuyet doi, ban van co the nhin ra khe ho giua hai thanh phan tren.

Ve cau hinh va hieu nang
Co the khang dinh rang, Galaxy Note 4 la chiec dien thoai co cau hinh ‘khung’ nhat tinh den thoi diem hien tai. May so huu vi xu ly Qualcomm Snapdragon 805 (4 nhan x 2.7Ghz) hoac vi xu ly Exynos 5433 (4 nhan Cortex A57 x 1.9GHz + 4 nhan Cortex A53 1.3GHz) tuy thi truong. Dieu dac biet ma hang dien thoai Han Quoc hau nhu khong nhac den trong buoi ra mat ngay 3/9 vua qua chinh la viec Note 4 la chiec Android dau tien cua Samsung chay bo vi xu ly 64 bit (Exynos 5433).

Cac diem so Benmark deu cho thay Exynos 5433 dat diem rat cao, ngang ngua voi vi xu ly Tegra K1 sap ra mat cua ‘lao lang’ Nvidia. Day la tien de de Samsung xuat xuong cac the he dien thoai thong minh so huu bo nho RAM ‘khong tuong’ 6GB theo nhu cac tin don gan day. Du vay thi Galaxy Note 4 van chi dung lai o con so 3GB RAM nhu Note 3 ma thoi. Di nhien voi bo xu ly ‘ngoai hang’ thi Galaxy Note 4 khong gap bat cu kho khan nao trong luc van hanh, ke ca voi nhung tac vu nang nhu xem phim, choi game… May hoat dong cuc ky muot ma va khoang cach giua Android va iOS ve khoan nay thi toi khong con co the nhan ra duoc nua.
Chat luong man hinh
Khac voi truyen thong ‘phong to’ qua cac nam cua dong Note, Galaxy Note 4 van chi su dung man hinh kich thuoc 5.7 inch cong nghe Super AMOLED nhung voi mat do diem anh dat muc 2K (QHD – 2560 x 1440 px), tuc la gap doi so voi Note 3.
Do cung la ly do Samsung chuyen sang su dung font chu moi, cuc ky thanh manh tren Note 4, tao cam giac sang trong hon va tinh te hon. Tuy nhien, ve thuc te, khi dat Note 3 va Note 4 o canh nhau voi cung mot tam hinh thi hau nhu nguoi dung rat kho chi ra rang man hinh nao dep hon. Ca 2 chiec Note deu cho ra do mau rat dep va sau, dung nhu chat cua man hinh Super AMOLED. Mau cua Note 4 thi co do bao hoa nhe hon 1 chut so voi Note 3, nhung chi la mot chut thoi. Khi de xa va che di thiet ke thi chinh toi cung khong the phan biet dau la Note 3 va dau la Note 4.

Diem cai tien lon nhat cua Note 4 den tu viec giam thieu do am mau von di la mot nhuoc diem tren man hinh AMOLED. Ban than Galaxy Note 3 khi dat canh cac man hinh cong nghe khac, nhat la cong nghe IPS thi thuong to ra duoi suc khi mau trang bi am xanh nhe. Ban than Samsung tung tuyen bo ho lam am xanh la co chu y de khach hang cam thay diu mat va thich hon. Du dieu do co phai la ‘bien minh’ hay khong nhung voi Note 4 thi Samsung da lam tuong doi tot trong viec khu di do am xanh cua Galaxy Note 3 (mac du van con). Nhin vao man hinh Note 4 goi cho toi cam giac dang su dung phien ban thu nho cua dong Galaxy Tab S, do cung la ly do tai sao trang DisplayMate lai danh gia man hinh Galaxy Note 4 tot nhat trong tat ca cac dien thoai hien nay.
Ve camera va am thanh
Bo qua tat ca nhung uu va khuyet ke tren, toi xin phep duoc noi den mot trong nhung dieu toi thich nhat tren chiec Galaxy Note 4 - camera. Khong phai dong thai ca ngoi Note 4 len tan may nhung that su ma noi thiet bi nay so huu kha nang chup anh tuyet voi so voi cac thiet bi Samsung khac.

Duoc trang bi may anh sau 16MP su dung cam bien cua Sony thay cho cong nghe ISOCEL cua Samsung nhu tren Galaxy S5, Galaxy Note 4 da cho thay kha nang ket hop tuyet voi giua phan cung va phan mem. Ban than toi cung khong hieu tai sao voi cung 1 hang san xuat nhung camera 16MP tren Note 4 lai khien toi hai long hon rat nhieu so voi camera 20.7MP tren Sony Xperia Z3 Compact. Voi mot dieu kien chup phong canh tuong doi nguoc sang, Xperia Z3 Compact lai cho ra hinh anh bi choi va sang qua muc can thiet trong khi Note 4 lai the hien kha nang chup dang kinh ngac voi do bao hoa mau trung thuc, khong he bi choi.
Diem thu hai toi thich ngoai mau sac va chi tiet hinh anh chinh la toc do chup. Chiec phabet cua Samsung cho toc do lay net gan nhu la tuc thi va toi cam giac no con nhanh hon toc do lay net tren cam bien ISOCEL cua Galaxy S5. Ben canh do, Samsung con tich hop kha nang chup anh phim cung thong qua nut tang giam am luong (lay net tu dong), giup ban co the nam bat moi khoanh khac ngay trong choc lat ma khong so bi rung hay nhoe hinh voi cong nghe chong rung quang hoc OIS.
Chong rung quang hoc la mot diem ma nhieu nguoi tung chi trich Samsung tai sao khong dem len cac dong dien thoai cua ho truoc day. Gio day no se la mot tin vui cho nhung ai tung cam thay khong thoai mai voi nhung buc anh bi nhoe cua dien thoai Samsung. Ngoai ra, kha nang chup ban dem cua Note 4 cung duoc cai thien so voi Galaxy Note 3 (du van co tinh trang bi nhieu hat/noise khi chup toi va dieu nay la khong tranh khoi voi may anh tren dien thoai).
Anh chup thu tu camera cua Galaxy Note 4:






Diem dac biet ke tiep ma toi van cuc ky thich khi su dung dien thoai cua hang dien tu Han Quoc nay ke tu Galaxy S3 chinh la giao dien va tinh nang chup anh. Samsung ho luon trang bi cho nguoi dung mot giao dien chup anh di kem voi hang loat nhung che do chinh san de dang de su dung. Chi can mot vai thao tac tim hieu ban dau la moi nguoi co the san sang de su dung may anh tren moi dieu kien va nhu cau khac nhau. Dieu nay rat phu hop cho mot so cac chi em va nhung nguoi khong chuyen ve thong so may anh.
Cac tinh nang nay tren Note 4 thua huong kha nhieu tu dien thoai chup anh Galaxy K Zoom, co the ke den bao gom: chup chan dung (xu ly da mat), chup ‘tu suong’ camera sau (tu dong chup khi nhan dien guong mat da vao vi tri cai san), chup xoa phong (chup macro), chup toan canh, chup 2 camera… Samsung con cung cap kha nang tai ve hang loat cac tinh nang chup hinh khac do chinh hang nay phat trien.
Camera truoc tren Note 4 cung la diem cai tien dang chu y. Do phan giai duoc nang tu muc 2.1 len thanh 3.7 MP cho kha nang chup ‘tu suong’ net hon. Tuy nhien, tinh nang chup ‘tu suong’ goc rong 120 do (Wide selfie) ma Samsung tung gioi thieu rat nhieu tai buoi ra mat hom 3/9 lai to ra rat kho su dung khi phai quay camera giong nhu kieu chup toan canh (panorama) o nhu tren camera sau. Neu nguoi dung quay bi lech len xuong thi hinh anh ghep noi lai rat xau. Tinh nang nay that su phai can lam quen rat lau moi co the thanh thao duoc.

Doi voi am thanh, loa ngoai cua Note 4 duoc cai thien kha nhieu, cho ra chat am ro va trong treo, khong bi hien tuong bet am nhe nhu Galaxy Note 3 (nhung cung van chua the bang duoc cong nghe Boom Sound tren HTC One M8). Con khi cam tai nghe thi chat luong cua 2 chiec Galaxy Note tren la nhu nhau va khong co su chenh lech dang ke.
Ve tinh nang va phan mem
Tinh nang la mot trong nhieu dieu dac biet ma it co nha san xuat dien thoai khac nao co the dem den nhu cac dien thoai cua Samsung. Nha san xuat dien tu nay luon muon mang lai cho khach hang rat nhieu cac tinh nang tich hop (huu dung co, vo dung cung co). Note 4 cung khong nam ngoai ngoai le khi so huu: cam bien van tay, cam bien do nhip tim, do nong do Oxy trong mau, do muc do cang thang (stress) va cam bien tia cuc tim UV.
Dieu dang tiec nhat la Note 4 da bi loai bo di 2 tinh nang kha can thiet la chong nuoc va cong USB 3.0 giup nang cao toc do sac. Du bi tieu giam con cong ket noi USB 2.0 nhung theo loi Samsung gioi thieu thi Note 4 di kem voi cong nghe sac nhanh giup tang toc do sac tu 0% - 50% chi trong vong 30 phut. Va nguoi dung cung nen chu y de tranh nhung rui ro dang tiec trong qua trinh su dung, nhat la khi di duoi mua hoac su dung trong nha tam.

Noi den dong Galaxy Note thi khong the khong nhac den cay but S-pen da lam nen thuong hieu cua nay. Da phan nhung tinh nang cua cay S-pen tren Note 4 cung tuong tu nhu tren Note 3 nhung duoc nang cap len dang ke bao gom tinh nang lua chon van ban nhanh, cat man hinh, cua so da nhiem, keo tha noi dung… Nhung tinh nang nay khien cho toi co cam giac dang su dung tren he dieu hanh Windows hon la tren Android.
Ngoai ra, S-pen cua Note 4 cung nhan dien duoc gap doi luc nhan tren cay S-pen cua Note 3. Dieu thu vi la cay S-pen cua Note 3 cung co the su dung tren Note 4 va cung nho dieu do toi moi thay duoc kha nang nhan luc khac nhau giua 2 cay viet nay (viet tren Note 4 cho ra cac net ve dam nhat giong het nhu khi su dung giay va viet). Toi hoan toan khong co loi nao che trach tinh nang S-pen tren Note 4 boi le nhung ai da tung su dung no se hieu duoc ly do tai sao.
Galaxy Note 4 van su dung giao dien Touchwiz truyen thong cua Samsung nhung duoc cai tien, tiep tuc di theo ngon ngu thiet ke phang nhu tren Galaxy S5. Co the nhieu nguoi se thich va nhieu nguoi khong thich Touchwiz nhung dung quen voi Android, ban hoan toan co the thay doi bat ky giao dien nao khac de phu hop voi ‘khau vi’ cua chinh minh.
Ve pin va thoi luong su dung pin
Galaxy Note 4 duoc trang bi vien pin 3220 mAh, tuc chi tang 20mAh so voi Note 3. Du phai ganh man hinh 2K nhung nho kha nang tiet kiem dien den hon 30% cua vi xu ly Exynos 5433 nen thoi luong su dung Note 4 ngang ngua voi Galaxy Note 3.

Thuc te trai nghiem, voi 100% pin va cuong do su dung lon: chup hinh, nghe nhac, luot web voi wifi tu 9g sang den 7g toi thi pin Note 4 con lai khoang duoi 30% va buoc ban phai di sac neu muon su dung tiep trong ngay hom sau. Neu it su dung thi pin cua Note 4 hoan toan co the duy tri duoc trong khoang tren duoi 3 ngay. Ben canh do Note 4 con duoc thua huong tinh nang sieu tiet kiem pin (Ultra Power Saving) co the keo dai thoi gian hoat dong cua may len den 24g chi voi 10% pin. Day la mot tinh nang hay va cuc ky can thiet trong dieu kien nguoi dung khong the sac pin trong mot thoi gian dai.
Tong ket
Voi thanh tich 10 trieu may ban ra cua Galaxy Note 3 thi Samsung hoan toan co the dat ky vong cho con so 15 trieu may Galaxy Note 4 trong nhung thang sap toi. Khong the phu nhan rang, hang dien tu Han Quoc dang phai doi mat voi kho khan rat lon khi Apple da chinh thuc dua ra thi truong ra chiec dien thoai Phabet iPhone 6 Plus voi kich thuoc gan bang Galaxy Note 4. Day se la tro ngai rat lon trong viec thuyet phuc khach hang lua chon Note 4 thay cho iPhone 6 Plus.
Tuy nhien, voi nhung no luc dang khen, su chiu kho lang nghe nhu cau khach hang ve thiet ke va phan mem, dac biet hon la su ‘doc quyen’ cua S-pen se giup cho Galaxy Note van la mot san pham dac biet va duy nhat trong phan khuc phabet tren thi truong hien nay. Galaxy Note 4 xung danh sieu pham va la mot niem tu hao cua nguoi A chau.