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alcatel Go Flip 4
Alcatel alcatel Go Flip 4
1.9
Price TBA
View Details
Xiaomi 15 Ultra
Xiaomi Xiaomi 15 Ultra
512GB · 16GB RAM
4.3
From $1,099
View Details
★ Our Pick

Our Verdict

Analysis

Xiaomi 15 Ultra has the bigger display.

Overall Winner
Xiaomi 15 Ultra
Display Winner
Xiaomi 15 Ultra
Performance Winner
Tie
Camera Winner
Tie
Battery Winner
Tie
Value Winner
Tie

Specifications Comparison

Feature alcatel Go Flip 4 Xiaomi 15 Ultra
Display size (in) 2.80 6.73
Main camera (MP) 2.00 50.00
Weight (g) 133 226
Thickness (mm) 19.90 9.35
Chipset QM215 Snapdragon 215 (28 nm) Snapdragon 8 Elite
OS KaiOS 3.0 Android 15, HyperOS 2

Pros & Cons

alcatel Go Flip 4

Xiaomi 15 Ultra

  • Outstanding camera versatility
  • Fast wired and wireless charging
  • Bright display
  • Heavy
  • Software still polishing animations
  • Limited availability in some regions

Every Spec, Side by Side

Specification
Alcatel
alcatel Go Flip 4
Xiaomi
Xiaomi 15 Ultra
Battery 3 specs
Type
Li-Ion 1850 mAh
Market-dependent versions:· Si/C Li-Ion 5410 mAh - Global· Si/C Li-Ion 6000 mAh - China
Capacity
5410 mAh
Charging
90W wired, 80W wireless
Body 5 specs
Dimensions
107.3 x 55.6 x 19.9 mm (4.22 x 2.19 x 0.78 in)
161.3 x 75.3 x 9.35 mm
Weight
133 g (4.69 oz)
226 g
SIM
Nano-SIM
· Nano-SIM + Nano-SIM· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)
Build
Glass front, glass-fiber reinforced plastic back or silicone polymer back (eco leather), aluminum frame
 
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Aerospace-grade glass fiber
Connectivity 8 specs
WLAN
Wi-Fi 802.11 b/g/n, hotspot
Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band or tri-band, Wi-Fi Direct
Bluetooth
4.2, A2DP
6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
Positioning
GPS
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS
NFC
No
Yes
Radio
FM radio
No
USB
USB Type-C 2.0
USB Type-C 3.2 Gen 2, DisplayPort, OTG
Infrared port
Yes
5G
Yes
Display 5 specs
Type
TN TFT LCD
LTPO AMOLED
Size
2.8 inches, 24.3 cm2 (~40.7% screen-to-body ratio)
6.73 inches
Resolution
240 x 320 pixels, 4:3 ratio (~143 ppi density)
1440 x 3200 pixels
 
Second external TN TFT display, 1.44 inches, 128 x 128 pixels
Protection
Xiaomi Shield Glass 2.0, Mohs level 6
Launch 2 specs
Announced
2021, September
2025, February 27
Status
Available. Released 2021, September
Available. Released 2025, February 27
Main Camera 4 specs
Single
2 MP
Video
480p@30fps
8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240/480/960/1920fps, gyro-EIS, Dolby Vision HDR 10-bit rec. (4K@60fps, 1080p)
Features
Laser AF, color spectrum sensor, Leica lenses, Dual-LED flash, HDR, panorama, 67mm filter ring holder (optional)
Quad
50 MP + 50 MP + 200 MP + 50 MP
Memory 5 specs
Card slot
microSDHC (dedicated slot)
No
Internal
4GB 512MB RAM
256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
 
UFS 4.1
RAM
16GB
Storage
512GB
Misc 5 specs
Colors
Midnight Blue
Black, White, Silver Chrome, Green
Models
4056W
25010PN30G
SAR
0.78 W/kg (head)     1.27 W/kg (body)    
Price
About 120 EUR
$ 693.75 / £ 1,295.00 / € 812.34
SAR EU
1.00 W/kg (head)     1.00 W/kg (body)    
Network 7 specs
Technology
GSM / HSPA / LTE
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 1900
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 1700(AWS) / 1900
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
2, 4, 5, 12, 25, 26, 41, 66, 71
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 42, 48, 66, 71 - International
Speed
HSPA, LTE
HSPA, LTE, 5G
 
1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 77, 78, 79, 80, 81, 83, 84, 89 SA/NSA - China
5G bands
1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 48, 66, 71, 75, 77, 78, 79 SA/NSA - International
Platform 4 specs
OS
KaiOS 3.0
Android 15, HyperOS 2
Chipset
QM215 Snapdragon 215 (28 nm)
Snapdragon 8 Elite
CPU
Quad-core 1.3 GHz Cortex-A53
Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU
Adreno 308
Adreno 830
Selfie Camera 4 specs
 
No
Features
HDR, panorama
Video
4K@30/60fps, 1080p@30/60fps, gyro-EIS
Single
32 MP
Sound 3 specs
Loudspeaker
Yes
Yes, with stereo speakers
3.5mm jack
Yes
No
 
24-bit/192kHz Hi-Res & Hi-Res Wireless audio Qualcomm XPAN (24-bit/96kHz audio)
Eu Label 4 specs
Energy
Class A
Battery
58:58h endurance, 1000 cycles
Free fall
Class C (90 falls)
Repairability
Class C
Features 2 specs
Sensors
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer
 
Two-way satellite communication (China model only)
Our Tests 2 specs
Loudspeaker
-24.1 LUFS (Very good)
Battery
Active use score 16:13h

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Common Questions

Which phone is the best in this comparison?

Xiaomi 15 Ultra has the bigger display.

How are the comparison winners decided?

We compare measurable specs (display size, battery capacity, RAM, charging, weight) and price (USD). When two phones tie or data is missing we mark the category "Depends".

Which is more affordable?

The cheaper option is shown as the value winner above. Prices are USD and may vary by region or retailer.