Screen size
Folder 2Winner: 2.8"+14%
KF757 Secret2.4"
Quick verdict
KF757 Secret leads the measured specs 7-5.
Measured wins
Folder 2
5
spec wins
Ties
3
equal specs
KF757 Secret
7
spec wins
Overall winner
Screen size
Technology
Folder 2
GSM / HSPA / LTE
KF757 Secret
GSM / HSPA
2G bands
Folder 2
GSM 850 / 900 / 1800 / 1900
KF757 Secret
GSM 900 / 1800 / 1900
3G bands
Folder 2
HSDPA 900 / 2100
KF757 Secret
HSDPA 2100
4G bands
Folder 2
LTE
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
KF757 Secret
-
Speed
Folder 2
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
KF757 Secret
HSPA 3.6/0.384 Mbps
Announced
Folder 2
2020, April 14. Released 2020, April 17
KF757 Secret
2008, April. Released 2008, June
Status
Folder 2
Discontinued
KF757 Secret
Discontinued
Dimensions
Folder 2
107.9 x 55 x 18 mm (4.25 x 2.17 x 0.71 in)
KF757 Secret
102.8 x 50.8 x 11.8 mm (4.05 x 2.0 x 0.46 in)
Weight
Folder 2
127 g (4.48 oz)
KF757 Secret
116 g (4.09 oz)
SIM
Folder 2
Nano-SIM
KF757 Secret
Mini-SIM
Type
Folder 2
IPS LCD
KF757 Secret
TFT resistive touchscreen, 256K colors
Size
Folder 2
2.8 inches, 24.3 cm2 (~40.9% screen-to-body ratio)
KF757 Secret
2.4 inches, 17.8 cm2 (~34.2% screen-to-body ratio)
Resolution
Folder 2
240 x 320 pixels, 4:3 ratio (~143 ppi density)
KF757 Secret
240 x 320 pixels, 4:3 ratio (~167 ppi density)
Other
Folder 2
External 0.9 inches monochrome display
KF757 Secret
Limited touchscreen functionality
Protection
Folder 2
-
KF757 Secret
Scratch-resistant glass
Card slot
Folder 2
microSDXC
KF757 Secret
microSDHC (dedicated slot)
Phonebook
Folder 2
Practically unlimited entries and fields, Photocal
KF757 Secret
1000 entries, Photocall
Call records
Folder 2
Practically unlimited
KF757 Secret
40 dialed, 40 received, 40 missed calls
Internal
Folder 2
8GB 1GB RAM
KF757 Secret
100MB
Single
Folder 2
2 MP
KF757 Secret
5 MP, AF
Video
Folder 2
Yes
KF757 Secret
480p@30fps, 320p@120fps
Features
Folder 2
-
KF757 Secret
LED flash
Other
Folder 2
Uses main camera
KF757 Secret
Videocall camera
Loudspeaker
Folder 2
Yes
KF757 Secret
Yes
3.5mm jack
Folder 2
-
KF757 Secret
No
WLAN
Folder 2
Wi-Fi 802.11 b/g/n
KF757 Secret
Wi-Fi 802.11 b/g
Bluetooth
Folder 2
Yes
KF757 Secret
2.0, A2DP
Positioning
Folder 2
GPS
KF757 Secret
No
NFC
Folder 2
No
KF757 Secret
-
Radio
Folder 2
FM radio
KF757 Secret
Stereo FM radio, RDS
USB
Folder 2
Yes
KF757 Secret
2.0
Sensors
Folder 2
KF757 Secret
Accelerometer
Messaging
Folder 2
SMS(threaded view), MMS, Email, Push Email, IM
KF757 Secret
SMS, EMS, MMS, Email
Games
Folder 2
Downloadable
KF757 Secret
6, incl. motion-based + downloadable
Java
Folder 2
No
KF757 Secret
Yes, MIDP 2.0
Browser
Folder 2
-
KF757 Secret
WAP 2.0/xHTML, HTML
Other
Folder 2
-
KF757 Secret
Carbon fiber battery cover MP3/WMA/AAC/AAC+ player MP4/DivX(up to 640x480) player Document viewer (Word, Excel, PowerPoint, PDF) Organizer Voice memo TV-out Predictive text input
Type
Folder 2
Li-Ion 1470 mAh, removable
KF757 Secret
Removable Li-Ion 800 mAh battery
Stand-by
Folder 2
-
KF757 Secret
Up to 220 h
Talk time
Folder 2
-
KF757 Secret
Up to 3 h 30 min
Colors
Folder 2
White, Platinum Gray
KF757 Secret
Black, Ruby Violet, Titan Gold
Price
Folder 2
About 150 EUR
KF757 Secret
About 110 EUR
SAR
Folder 2
-
KF757 Secret
0.53 W/kg (head) 0.24 W/kg (body)